diff --git a/common/gl_vidglx.c b/common/gl_vidglx.c
index c1054a1..ea0e7f2 100644
--- a/common/gl_vidglx.c
+++ b/common/gl_vidglx.c
@@ -567,3 +567,14 @@ void VID_InitCvars()
 	gl_triplebuffer = Cvar_Get("gl_triplebuffer","1",CVAR_ARCHIVE,"None");
 	gl_pscale = Cvar_Get("gl_pscale","1",0,"Sets the size of particles");
 }
+
+void
+VID_LockBuffer ( void )
+{
+}
+
+void
+VID_UnlockBuffer ( void )
+{
+}
+
diff --git a/common/gl_vidlinux_3dfx.c b/common/gl_vidlinux_3dfx.c
index ad75f1e..db81564 100644
--- a/common/gl_vidlinux_3dfx.c
+++ b/common/gl_vidlinux_3dfx.c
@@ -521,3 +521,14 @@ void VID_InitCvars ()
 	gl_triplebuffer = Cvar_Get ("gl_triplebuffer","1",CVAR_ARCHIVE,"None");
 	gl_pscale = Cvar_Get ("gl_pscale","1",0,"Sets the size of particles");
 }
+
+void
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid.h b/common/vid.h
index 8266f64..3f1e96f 100644
--- a/common/vid.h
+++ b/common/vid.h
@@ -106,4 +106,8 @@ void VID_InitCvars(void);
 
 qboolean VID_Is8bit(void);
 
+void VID_LockBuffer (void);
+void VID_UnlockBuffer (void);
+
+
 #endif // _VID_H
diff --git a/common/vid_aa.c b/common/vid_aa.c
index 2c50245..8c946ef 100644
--- a/common/vid_aa.c
+++ b/common/vid_aa.c
@@ -546,3 +546,14 @@ void VID_InitCvars ()
 {
 	// It may not look it, but this is important
 }
+
+void
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_dos.c b/common/vid_dos.c
index 992d352..788d62a 100644
--- a/common/vid_dos.c
+++ b/common/vid_dos.c
@@ -814,3 +814,14 @@ void VID_InitCvars ()
 {
 	// It may not look it, but this is important
 }
+
+void
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_ext.c b/common/vid_ext.c
index 9b7235b..9db1aae 100644
--- a/common/vid_ext.c
+++ b/common/vid_ext.c
@@ -799,3 +799,13 @@ void VID_ExtraSwapBuffers (viddef_t *lvid, vmode_t *pcurrentmode,
 	}
 }
 
+void    
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_ggi.c b/common/vid_ggi.c
index dcd24fa..df8df4b 100644
--- a/common/vid_ggi.c
+++ b/common/vid_ggi.c
@@ -991,3 +991,13 @@ void VID_InitCvars ()
 	// It may not look it, but this is important
 }
 
+void    
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_null.c b/common/vid_null.c
index 29d9243..53b56db 100644
--- a/common/vid_null.c
+++ b/common/vid_null.c
@@ -112,3 +112,13 @@ void VID_ExtraOptionCmd(int option_cursor)
 */
 }
 
+void    
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_sdl.c b/common/vid_sdl.c
index d602920..e5fcc4a 100644
--- a/common/vid_sdl.c
+++ b/common/vid_sdl.c
@@ -474,3 +474,14 @@ void VID_InitCvars ()
 {
 	// It may not look like it, but this is important
 }
+
+void    
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_sunx.c b/common/vid_sunx.c
index bcb0860..6fce6de 100644
--- a/common/vid_sunx.c
+++ b/common/vid_sunx.c
@@ -1175,3 +1175,13 @@ void VID_InitCvars (void)
 	// It may not look like it, but this is important
 }
 
+void    
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_sunxil.c b/common/vid_sunxil.c
index e0c1552..8670db1 100644
--- a/common/vid_sunxil.c
+++ b/common/vid_sunxil.c
@@ -1288,3 +1288,13 @@ void VID_InitCvars ()
 	// It may not look like it, but this is important
 }
 
+void    
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_svgalib.c b/common/vid_svgalib.c
index cadc9be..ce9468d 100644
--- a/common/vid_svgalib.c
+++ b/common/vid_svgalib.c
@@ -698,3 +698,13 @@ void VID_InitCvars ()
 	// It may not look like it, but this is important
 }
 
+void    
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_vga.c b/common/vid_vga.c
index 5033b49..75057a5 100644
--- a/common/vid_vga.c
+++ b/common/vid_vga.c
@@ -483,3 +483,13 @@ void VGA_SwapBuffers (viddef_t *lvid, vmode_t *pcurrentmode, vrect_t *rects)
 	VGA_SwapBuffersCopy (lvid, pcurrentmode, rects);
 }
 
+void    
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_win.c b/common/vid_win.c
index caa7424..18c8e54 100644
--- a/common/vid_win.c
+++ b/common/vid_win.c
@@ -3486,3 +3486,13 @@ void VID_InitCvars()
 	// It may not look like it, but this is important
 }
 
+void    
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/vid_x11.c b/common/vid_x11.c
index dac93bf..9cd4b2a 100644
--- a/common/vid_x11.c
+++ b/common/vid_x11.c
@@ -801,3 +801,14 @@ void VID_InitCvars ()
 {
 	// It may not look like it, but this is important
 }
+
+void    
+VID_LockBuffer ( void )
+{       
+}       
+
+void
+VID_UnlockBuffer ( void )
+{       
+}       
+
diff --git a/common/winquake.h b/common/winquake.h
index 0a5476f..251d101 100644
--- a/common/winquake.h
+++ b/common/winquake.h
@@ -69,8 +69,6 @@ extern LPDIRECTSOUNDBUFFER pDSBuf;
 extern DWORD gSndBufSize;
 //#define SNDBUFSIZE 65536
 
-void	VID_LockBuffer (void);
-void	VID_UnlockBuffer (void);
 
 #endif