diff --git a/Configuration.h b/Configuration.h
index 0776c67..ab44107 100644
--- a/Configuration.h
+++ b/Configuration.h
@@ -24,8 +24,8 @@ Licence: GPL
 #define CONFIGURATION_H
 
 #define NAME "RepRapFirmware"
-#define VERSION "0.48"
-#define DATE "2013-12-27"
+#define VERSION "0.49"
+#define DATE "2013-12-30"
 #define LAST_AUTHOR "reprappro.com"
 
 // Other firmware that we might switch to be compatible with.
diff --git a/GCodes.cpp b/GCodes.cpp
index eed8722..b121d48 100644
--- a/GCodes.cpp
+++ b/GCodes.cpp
@@ -1337,6 +1337,8 @@ bool GCodes::ActOnGcode(GCodeBuffer *gb)
       break;
       
     case 24: // Print/resume-printing the selected file
+      if(fileBeingPrinted != NULL)
+    	  break;
       fileBeingPrinted = fileToPrint;
       fileToPrint = NULL;
       break;
diff --git a/Release/RepRapFirmware-048-27-12-2013.bin b/Release/RepRapFirmware-049-30-12-2013.bin
similarity index 78%
rename from Release/RepRapFirmware-048-27-12-2013.bin
rename to Release/RepRapFirmware-049-30-12-2013.bin
index c9da656..9f6cca1 100755
Binary files a/Release/RepRapFirmware-048-27-12-2013.bin and b/Release/RepRapFirmware-049-30-12-2013.bin differ
diff --git a/Release/RepRapFirmware.bin b/Release/RepRapFirmware.bin
index c9da656..9f6cca1 100755
Binary files a/Release/RepRapFirmware.bin and b/Release/RepRapFirmware.bin differ