diff --git a/src/d_player.h b/src/d_player.h
index f89d66550..7c21358c8 100644
--- a/src/d_player.h
+++ b/src/d_player.h
@@ -151,8 +151,6 @@ enum
 extern AActor *WP_NOCHANGE;
 
 
-#define MAXPLAYERNAME	15
-
 // [GRB] Custom player classes
 enum
 {
diff --git a/src/utility/configfile.cpp b/src/utility/configfile.cpp
index b841e8d3d..2dc016e9e 100644
--- a/src/utility/configfile.cpp
+++ b/src/utility/configfile.cpp
@@ -623,15 +623,15 @@ void FConfigFile::LoadConfigFile ()
 
 bool FConfigFile::ReadConfig (void *file)
 {
-	char readbuf[READBUFFERSIZE];
+	uint8_t readbuf[READBUFFERSIZE];
 	FConfigSection *section = NULL;
 	ClearConfig ();
 
-	while (ReadLine (readbuf, READBUFFERSIZE, file) != NULL)
+	while (ReadLine ((char*)readbuf, READBUFFERSIZE, file) != NULL)
 	{
-		char *start = readbuf;
-		char *equalpt;
-		char *endpt;
+		uint8_t *start = readbuf;
+		uint8_t *equalpt;
+		uint8_t *endpt;
 
 		// Remove white space at start of line
 		while (*start && *start <= ' ')
@@ -644,7 +644,7 @@ bool FConfigFile::ReadConfig (void *file)
 			continue;
 		}
 		// Do not process tail of long line
-		const bool longline = (READBUFFERSIZE - 1) == strlen(readbuf) && '\n' != readbuf[READBUFFERSIZE - 2];
+		const bool longline = (READBUFFERSIZE - 1) == strlen((char*)readbuf) && '\n' != readbuf[READBUFFERSIZE - 2];
 		if (longline)
 		{
 			endpt = start + READBUFFERSIZE - 2;
@@ -652,7 +652,7 @@ bool FConfigFile::ReadConfig (void *file)
 		else
 		{
 			// Remove white space at end of line
-			endpt = start + strlen (start) - 1;
+			endpt = start + strlen ((char*)start) - 1;
 			while (endpt > start && *endpt <= ' ')
 			{
 				endpt--;
@@ -667,7 +667,7 @@ bool FConfigFile::ReadConfig (void *file)
 		{ // Section header
 			if (*endpt == ']')
 				*endpt = 0;
-			section = NewConfigSection (start+1);
+			section = NewConfigSection ((char*)start+1);
 		}
 		else if (section == NULL)
 		{
@@ -675,11 +675,11 @@ bool FConfigFile::ReadConfig (void *file)
 		}
 		else
 		{ // Should be key=value
-			equalpt = strchr (start, '=');
+			equalpt = (uint8_t*)strchr ((char*)start, '=');
 			if (equalpt != NULL && equalpt > start)
 			{
 				// Remove white space in front of =
-				char *whiteprobe = equalpt - 1;
+				uint8_t *whiteprobe = equalpt - 1;
 				while (whiteprobe > start && isspace(*whiteprobe))
 				{
 					whiteprobe--;
@@ -695,16 +695,16 @@ bool FConfigFile::ReadConfig (void *file)
 				// Check for multi-line value
 				if (whiteprobe[0] == '<' && whiteprobe[1] == '<' && whiteprobe[2] == '<' && whiteprobe[3] != '\0')
 				{
-					ReadMultiLineValue (file, section, start, whiteprobe + 3);
+					ReadMultiLineValue (file, section, (char*)start, (char*)whiteprobe + 3);
 				}
 				else if (longline)
 				{
-					const FString key = start;
-					FString value = whiteprobe;
+					const FString key = (char*)start;
+					FString value = (char*)whiteprobe;
 					
-					while (ReadLine (readbuf, READBUFFERSIZE, file) != NULL)
+					while (ReadLine ((char*)readbuf, READBUFFERSIZE, file) != NULL)
 					{
-						const size_t endpos = (0 == readbuf[0]) ? 0 : (strlen(readbuf) - 1);
+						const size_t endpos = (0 == readbuf[0]) ? 0 : (strlen((char*)readbuf) - 1);
 						const bool endofline = '\n' == readbuf[endpos];
 						
 						if (endofline)
@@ -712,7 +712,7 @@ bool FConfigFile::ReadConfig (void *file)
 							readbuf[endpos] = 0;
 						}
 						
-						value += readbuf;
+						value += (char*)readbuf;
 						
 						if (endofline)
 						{
@@ -724,7 +724,7 @@ bool FConfigFile::ReadConfig (void *file)
 				}
 				else
 				{
-					NewConfigEntry (section, start, whiteprobe);
+					NewConfigEntry (section, (char*)start, (char*)whiteprobe);
 				}
 			}
 		}
diff --git a/src/utility/utf8.cpp b/src/utility/utf8.cpp
index 1a8e4648a..14f7b7983 100644
--- a/src/utility/utf8.cpp
+++ b/src/utility/utf8.cpp
@@ -94,7 +94,7 @@ int utf8_decode(const uint8_t *src, int *size)
 		return c;
 	}
 
-	int c1 = src[1];
+	int c1 = src[1] & 0x3f;
 
 	if ((c & 0xE0) == 0xC0) 
 	{
@@ -107,7 +107,7 @@ int utf8_decode(const uint8_t *src, int *size)
 		return -1;
 	}
 
-	int c2 = src[2];
+	int c2 = src[2] & 0x3f;
 
 	if ((c & 0xF0) == 0xE0) 
 	{
@@ -120,7 +120,7 @@ int utf8_decode(const uint8_t *src, int *size)
 		return -1;
 	}
 	
-	int c3 = src[3];
+	int c3 = src[3] & 0x3f;
 
 	if ((c & 0xF8) == 0xF0) 
 	{
diff --git a/wadsrc/static/zscript/constants.txt b/wadsrc/static/zscript/constants.txt
index 0df017485..6ac2ddc27 100644
--- a/wadsrc/static/zscript/constants.txt
+++ b/wadsrc/static/zscript/constants.txt
@@ -1,7 +1,6 @@
 // for flag changer functions.
 const FLAG_NO_CHANGE = -1;
 const MAXPLAYERS = 8;
-const MAXPLAYERNAME = 15;
 
 enum EStateUseFlags
 {
diff --git a/wadsrc/static/zscript/menu/loadsavemenu.txt b/wadsrc/static/zscript/menu/loadsavemenu.txt
index 09cf2a33b..e6e453d36 100644
--- a/wadsrc/static/zscript/menu/loadsavemenu.txt
+++ b/wadsrc/static/zscript/menu/loadsavemenu.txt
@@ -460,8 +460,7 @@ class SaveMenu : LoadSaveMenu
 	//
 	//
 	//=============================================================================
-	const SAVESTRINGSIZE = 32;
-
+	
 	override bool MenuEvent (int mkey, bool fromcontroller)
 	{
 		if (Super.MenuEvent(mkey, fromcontroller)) 
@@ -476,7 +475,7 @@ class SaveMenu : LoadSaveMenu
 		if (mkey == MKEY_Enter)
 		{
 			String SavegameString = (Selected != 0)? manager.GetSavegame(Selected).SaveTitle : "";
-			mInput = TextEnterMenu.Open(self, SavegameString, SAVESTRINGSIZE, 1, fromcontroller);
+			mInput = TextEnterMenu.Open(self, SavegameString, -1, 1, fromcontroller);
 			mInput.ActivateMenu();
 			mEntering = true;
 		}
diff --git a/wadsrc/static/zscript/menu/playercontrols.txt b/wadsrc/static/zscript/menu/playercontrols.txt
index 6b3a9bcf4..70eceb727 100644
--- a/wadsrc/static/zscript/menu/playercontrols.txt
+++ b/wadsrc/static/zscript/menu/playercontrols.txt
@@ -92,7 +92,7 @@ class ListMenuItemPlayerNameBox : ListMenuItemSelectable
 	{
 		if (i == 0)
 		{
-			mPlayerName = s.Mid(0, MAXPLAYERNAME);
+			mPlayerName = s;
 			return true;
 		}
 		return false;
@@ -164,7 +164,7 @@ class ListMenuItemPlayerNameBox : ListMenuItemSelectable
 
 		// Draw player name box
 		double x = mXpos + mFont.StringWidth(text) + 16 + mFrameSize;
-		DrawBorder (x, mYpos - mFrameSize, MAXPLAYERNAME+1);
+		DrawBorder (x, mYpos - mFrameSize, 16);	// This creates a 128 pixel wide text box.
 		if (!mEnter)
 		{
 			screen.DrawText (SmallFont, Font.CR_UNTRANSLATED, x + mFrameSize, mYpos, mPlayerName, DTA_Clean, true);
@@ -187,7 +187,7 @@ class ListMenuItemPlayerNameBox : ListMenuItemSelectable
 		if (mkey == Menu.MKEY_Enter)
 		{
 			Menu.MenuSound ("menu/choose");
-			mEnter = TextEnterMenu.Open(Menu.GetCurrentMenu(), mPlayerName, MAXPLAYERNAME, 2, fromcontroller);
+			mEnter = TextEnterMenu.Open(Menu.GetCurrentMenu(), mPlayerName, -1, 2, fromcontroller);
 			mEnter.ActivateMenu();
 			return true;
 		}