diff --git a/src/compatibility.cpp b/src/compatibility.cpp
index 7bbff7322..dca0d3485 100644
--- a/src/compatibility.cpp
+++ b/src/compatibility.cpp
@@ -541,7 +541,7 @@ CCMD (mapchecksum)
 	}
 	for (int i = 1; i < argv.argc(); ++i)
 	{
-		map = P_OpenMapData(argv[i]);
+		map = P_OpenMapData(argv[i], true);
 		if (map == NULL)
 		{
 			Printf("Cannot load %s as a map\n", argv[i]);
diff --git a/src/g_level.cpp b/src/g_level.cpp
index 7e56d8843..0b07ae2b5 100644
--- a/src/g_level.cpp
+++ b/src/g_level.cpp
@@ -1923,7 +1923,7 @@ CCMD(listmaps)
 	for(unsigned i = 0; i < wadlevelinfos.Size(); i++)
 	{
 		level_info_t *info = &wadlevelinfos[i];
-		MapData *map = P_OpenMapData(info->mapname);
+		MapData *map = P_OpenMapData(info->mapname, true);
 
 		if (map != NULL)
 		{
diff --git a/src/m_argv.cpp b/src/m_argv.cpp
index 54d9ffda4..816a2d54c 100644
--- a/src/m_argv.cpp
+++ b/src/m_argv.cpp
@@ -35,6 +35,7 @@
 #include <string.h>
 #include "m_argv.h"
 #include "cmdlib.h"
+#include "i_system.h"
 
 IMPLEMENT_CLASS (DArgs)
 
@@ -391,6 +392,14 @@ void DArgs::CollectFiles(const char *param, const char *extension)
 		}
 	}
 
+	// Optional: Replace short path names with long path names
+#ifdef _WIN32
+	for (i = 0; i < work.Size(); ++i)
+	{
+		work[i] = I_GetLongPathName(work[i]);
+	}
+#endif
+
 	// Step 3: Add work back to Argv, as long as it's non-empty.
 	if (work.Size() > 0)
 	{
diff --git a/src/p_acs.cpp b/src/p_acs.cpp
index aa6a8ca87..21e0d5c0b 100644
--- a/src/p_acs.cpp
+++ b/src/p_acs.cpp
@@ -575,11 +575,7 @@ int ACSStringPool::InsertString(FString &str, unsigned int h, unsigned int bucke
 	}
 	else
 	{ // Scan for the next free entry
-		unsigned int i;
-		for (i = FirstFreeEntry + 1; i < Pool.Size() && Pool[i].Next != FREE_ENTRY; ++i)
-		{
-		}
-		FirstFreeEntry = i;
+		FindFirstFreeEntry(FirstFreeEntry + 1);
 	}
 	PoolEntry *entry = &Pool[index];
 	entry->Str = str;
@@ -590,6 +586,23 @@ int ACSStringPool::InsertString(FString &str, unsigned int h, unsigned int bucke
 	return index | STRPOOL_LIBRARYID_OR;
 }
 
+//============================================================================
+//
+// ACSStringPool :: FindFirstFreeEntry
+//
+// Finds the first free entry, starting at base.
+//
+//============================================================================
+
+void ACSStringPool::FindFirstFreeEntry(unsigned base)
+{
+	while (base < Pool.Size() && Pool[base].Next != FREE_ENTRY)
+	{
+		base++;
+	}
+	FirstFreeEntry = base;
+}
+
 //============================================================================
 //
 // ACSStringPool :: ReadStrings
@@ -638,6 +651,7 @@ void ACSStringPool::ReadStrings(PNGHandle *png, DWORD id)
 		{
 			delete[] str;
 		}
+		FindFirstFreeEntry(0);
 	}
 }
 
@@ -690,6 +704,7 @@ void ACSStringPool::Dump() const
 			Printf("%4u. (%2d) \"%s\"\n", i, Pool[i].LockCount, Pool[i].Str.GetChars());
 		}
 	}
+	Printf("First free %u\n", FirstFreeEntry);
 }
 
 //============================================================================
@@ -8405,7 +8420,7 @@ scriptwait:
 			{
 				int playernum = STACK(1);
 
-				if (playernum < 0 || playernum >= MAXPLAYERS || !playeringame[playernum] || players[playernum].camera == NULL)
+				if (playernum < 0 || playernum >= MAXPLAYERS || !playeringame[playernum] || players[playernum].camera == NULL || players[playernum].camera->player != NULL)
 				{
 					STACK(1) = -1;
 				}
diff --git a/src/p_acs.h b/src/p_acs.h
index 1a0fb3f60..ec41ab886 100644
--- a/src/p_acs.h
+++ b/src/p_acs.h
@@ -100,6 +100,7 @@ public:
 private:
 	int FindString(const char *str, size_t len, unsigned int h, unsigned int bucketnum);
 	int InsertString(FString &str, unsigned int h, unsigned int bucketnum, const SDWORD *stack, int stackdepth);
+	void FindFirstFreeEntry(unsigned int base);
 
 	enum { NUM_BUCKETS = 251 };
 	enum { FREE_ENTRY = 0xFFFFFFFE };	// Stored in PoolEntry's Next field
diff --git a/src/p_setup.cpp b/src/p_setup.cpp
index 784e6946f..3693e9f7e 100644
--- a/src/p_setup.cpp
+++ b/src/p_setup.cpp
@@ -250,7 +250,7 @@ static int GetMapIndex(const char *mapname, int lastindex, const char *lumpname,
 //
 //===========================================================================
 
-MapData *P_OpenMapData(const char * mapname)
+MapData *P_OpenMapData(const char * mapname, bool justcheck)
 {
 	MapData * map = new MapData;
 	FileReader * wadReader = NULL;
@@ -331,13 +331,18 @@ MapData *P_OpenMapData(const char * mapname)
 					const char * lumpname = Wads.GetLumpFullName(lump_name + i);
 					try
 					{
-						index = GetMapIndex(mapname, index, lumpname, true);
+						index = GetMapIndex(mapname, index, lumpname, !justcheck);
 					}
 					catch(...)
 					{
 						delete map;
 						throw;
 					}
+					if (index == -2)
+					{
+						delete map;
+						return NULL;
+					}
 					if (index == ML_BEHAVIOR) map->HasBehavior = true;
 
 					// The next lump is not part of this map anymore
@@ -471,13 +476,18 @@ MapData *P_OpenMapData(const char * mapname)
 			{
 				try
 				{
-					index = GetMapIndex(maplabel, index, lumpname, true);
+					index = GetMapIndex(maplabel, index, lumpname, !justcheck);
 				}
 				catch(...)
 				{
 					delete map;
 					throw;
 				}
+				if (index == -2)
+				{
+					delete map;
+					return NULL;
+				}
 				if (index == ML_BEHAVIOR) map->HasBehavior = true;
 
 				// The next lump is not part of this map anymore
@@ -508,7 +518,7 @@ MapData *P_OpenMapData(const char * mapname)
 
 bool P_CheckMapData(const char *mapname)
 {
-	MapData *mapd = P_OpenMapData(mapname);
+	MapData *mapd = P_OpenMapData(mapname, true);
 	if (mapd == NULL) return false;
 	delete mapd;
 	return true;
@@ -3610,7 +3620,7 @@ void P_SetupLevel (char *lumpname, int position)
 	P_FreeLevelData ();
 	interpolator.ClearInterpolations();	// [RH] Nothing to interpolate on a fresh level.
 
-	MapData *map = P_OpenMapData(lumpname);
+	MapData *map = P_OpenMapData(lumpname, true);
 	if (map == NULL)
 	{
 		I_Error("Unable to open map '%s'\n", lumpname);
diff --git a/src/p_setup.h b/src/p_setup.h
index 6e0a90a1d..4a41a76f9 100644
--- a/src/p_setup.h
+++ b/src/p_setup.h
@@ -94,7 +94,7 @@ struct MapData
 	void GetChecksum(BYTE cksum[16]);
 };
 
-MapData * P_OpenMapData(const char * mapname);
+MapData * P_OpenMapData(const char * mapname, bool justcheck);
 bool P_CheckMapData(const char * mapname);
 
 
diff --git a/src/statistics.cpp b/src/statistics.cpp
index aa8d9afc1..81cd88983 100644
--- a/src/statistics.cpp
+++ b/src/statistics.cpp
@@ -463,7 +463,7 @@ void STAT_ChangeLevel(const char *newl)
 		{
 			// we reached the end of this episode
 			int wad = 0;
-			MapData * map = P_OpenMapData(StartEpisode->mEpisodeMap);
+			MapData * map = P_OpenMapData(StartEpisode->mEpisodeMap, false);
 			if (map != NULL)
 			{
 				wad = Wads.GetLumpFile(map->lumpnum);
diff --git a/src/textures/multipatchtexture.cpp b/src/textures/multipatchtexture.cpp
index 3083735a9..fd2b59fb1 100644
--- a/src/textures/multipatchtexture.cpp
+++ b/src/textures/multipatchtexture.cpp
@@ -233,13 +233,13 @@ FMultiPatchTexture::FMultiPatchTexture (const void *texdef, FPatchLookup *patchl
 		NumParts = SAFESHORT(mtexture.d->patchcount);
 	}
 
-	if (NumParts <= 0)
+	if (NumParts < 0)
 	{
 		I_FatalError ("Bad texture directory");
 	}
 
 	UseType = FTexture::TEX_Wall;
-	Parts = new TexPart[NumParts];
+	Parts = NumParts > 0 ? new TexPart[NumParts] : NULL;
 	Width = SAFESHORT(mtexture.d->width);
 	Height = SAFESHORT(mtexture.d->height);
 	strncpy (Name, (const char *)mtexture.d->name, 8);
@@ -906,7 +906,7 @@ void FTextureManager::AddTexturesLump (const void *lumpdata, int lumpsize, int d
 
 		// There is bizzarely a Doom editing tool that writes to the
 		// first two elements of columndirectory, so I can't check those.
-		if (SAFESHORT(tex->patchcount) <= 0 ||
+		if (SAFESHORT(tex->patchcount) < 0 ||
 			tex->columndirectory[2] != 0 ||
 			tex->columndirectory[3] != 0)
 		{
diff --git a/src/thingdef/thingdef_codeptr.cpp b/src/thingdef/thingdef_codeptr.cpp
index 7964c422b..510370ba1 100644
--- a/src/thingdef/thingdef_codeptr.cpp
+++ b/src/thingdef/thingdef_codeptr.cpp
@@ -4913,6 +4913,18 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SetTics)
 	ACTION_PARAM_START(1);
 	ACTION_PARAM_INT(tics_to_set, 0);
 
+	if (stateowner != self && self->player != NULL && stateowner->IsKindOf(RUNTIME_CLASS(AWeapon)))
+	{ // Is this a weapon? Need to check psp states for a match, then. Blah.
+		for (int i = 0; i < NUMPSPRITES; ++i)
+		{
+			if (self->player->psprites[i].state == CallingState)
+			{
+				self->player->psprites[i].tics = tics_to_set;
+				return;
+			}
+		}
+	}
+	// Just set tics for self.
 	self->tics = tics_to_set;
 }
 
diff --git a/src/win32/i_system.cpp b/src/win32/i_system.cpp
index b5843ec7a..a82cb65f9 100644
--- a/src/win32/i_system.cpp
+++ b/src/win32/i_system.cpp
@@ -1569,3 +1569,31 @@ unsigned int I_MakeRNGSeed()
 	CryptReleaseContext(prov, 0);
 	return seed;
 }
+
+//==========================================================================
+//
+// I_GetLongPathName
+//
+// Returns the long version of the path, or the original if there isn't
+// anything worth changing.
+//
+//==========================================================================
+
+FString I_GetLongPathName(FString shortpath)
+{
+	DWORD buffsize = GetLongPathName(shortpath.GetChars(), NULL, 0);
+	if (buffsize == 0)
+	{ // nothing to change (it doesn't exist, maybe?)
+		return shortpath;
+	}
+	TCHAR *buff = new TCHAR[buffsize];
+	DWORD buffsize2 = GetLongPathName(shortpath.GetChars(), buff, buffsize);
+	if (buffsize2 >= buffsize)
+	{ // Failure! Just return the short path
+		delete[] buff;
+		return shortpath;
+	}
+	FString longpath(buff, buffsize2);
+	delete[] buff;
+	return longpath;
+}
diff --git a/src/win32/i_system.h b/src/win32/i_system.h
index 6bafdc01c..9fbf2db5c 100644
--- a/src/win32/i_system.h
+++ b/src/win32/i_system.h
@@ -155,6 +155,9 @@ typedef _W64 long WLONG_PTR;
 typedef long WLONG_PTR;
 #endif
 
+// Wrapper for GetLongPathName
+FString I_GetLongPathName(FString shortpath);
+
 // Directory searching routines
 
 // Mirror WIN32_FIND_DATAA in <winbase.h>