diff --git a/sc2/src/sc2code/libs/graphics/filegfx.c b/sc2/src/sc2code/libs/graphics/filegfx.c
index 0fe056748..5f77bb19f 100644
--- a/sc2/src/sc2code/libs/graphics/filegfx.c
+++ b/sc2/src/sc2code/libs/graphics/filegfx.c
@@ -18,16 +18,25 @@
 
 #include "gfxintrn.h"
 
+extern char *_cur_resfile_name;
+
 DWORD
 LoadCelFile (PVOID pStr)
 {
 	FILE *fp;
 
+	// FIXME: this theoretically needs a mechanism to prevent races
+	if (_cur_resfile_name)
+		// something else is loading resources atm
+		return 0;
+
 	if ((fp = res_OpenResFile (pStr, "rb")) != NULL)
 	{
 		MEM_HANDLE hData;
 
+		_cur_resfile_name = pStr;
 		hData = _GetCelData (fp, LengthResFile (fp));
+		_cur_resfile_name = 0;
 		res_CloseResFile (fp);
 		return ((DWORD)hData);
 	}
@@ -40,11 +49,18 @@ LoadFontFile (PVOID pStr)
 {
 	FILE *fp;
 
+	// FIXME: this theoretically needs a mechanism to prevent races
+	if (_cur_resfile_name)
+		// something else is loading resources atm
+		return 0;
+	
 	if ((fp = res_OpenResFile (pStr, "rb")) != NULL)
 	{
 		MEM_HANDLE hData;
 
+		_cur_resfile_name = pStr;
 		hData = _GetFontData (fp, LengthResFile (fp));
+		_cur_resfile_name = 0;
 		res_CloseResFile (fp);
 		return ((DWORD)hData);
 	}
diff --git a/sc2/src/sc2code/libs/sound/fileinst.c b/sc2/src/sc2code/libs/sound/fileinst.c
index 14efd4efe..4fbe2bc6f 100644
--- a/sc2/src/sc2code/libs/sound/fileinst.c
+++ b/sc2/src/sc2code/libs/sound/fileinst.c
@@ -18,17 +18,26 @@
 
 #include "sndintrn.h"
 
+extern char *_cur_resfile_name;
+
 SOUND_REF
 LoadSoundFile (PVOID pStr)
 {
 	FILE *fp;
 
+	// FIXME: this theoretically needs a mechanism to prevent races
+	if (_cur_resfile_name)
+		// something else is loading resources atm
+		return 0;
+
 	fp = res_OpenResFile (pStr, "rb");
 	if (fp)
 	{
 		MEM_HANDLE hData;
 
+		_cur_resfile_name = pStr;
 		hData = _GetSoundBankData (fp, LengthResFile (fp));
+		_cur_resfile_name = 0;
 
 		res_CloseResFile (fp);
 
@@ -43,12 +52,19 @@ LoadMusicFile (PVOID pStr)
 {
 	FILE *fp;
 
+	// FIXME: this theoretically needs a mechanism to prevent races
+	if (_cur_resfile_name)
+		// something else is loading resources atm
+		return 0;
+
 	fp = res_OpenResFile (pStr, "rb");
 	if (fp)
 	{
 		MEM_HANDLE hData;
 
+		_cur_resfile_name = pStr;
 		hData = _GetMusicData (fp, LengthResFile (fp));
+		_cur_resfile_name = 0;
 
 		res_CloseResFile (fp);
 
diff --git a/sc2/src/sc2code/libs/strings/sfileins.c b/sc2/src/sc2code/libs/strings/sfileins.c
index 8b828b55d..5c5872116 100644
--- a/sc2/src/sc2code/libs/strings/sfileins.c
+++ b/sc2/src/sc2code/libs/strings/sfileins.c
@@ -18,17 +18,26 @@
 
 #include "strintrn.h"
 
+extern char *_cur_resfile_name;
+
 STRING_TABLE
 LoadStringTableFile (PVOID pStr)
 {
 	FILE *fp;
 
+	// FIXME: this theoretically needs a mechanism to prevent races
+	if (_cur_resfile_name)
+		// something else is loading resources atm
+		return 0;
+
 	fp = res_OpenResFile (pStr, "rb");
 	if (fp)
 	{
 		MEM_HANDLE hData;
 
+		_cur_resfile_name = pStr;
 		hData = _GetStringData (fp, LengthResFile (fp));
+		_cur_resfile_name = 0;
 		res_CloseResFile (fp);
 
 		return (BUILD_STRING_TABLE (hData));