diff -r cc88aabd867b -r 83c58605f049 userlibandfileserver/fileserver/sfat32/sl_drv.cpp
--- a/userlibandfileserver/fileserver/sfat32/sl_drv.cpp	Wed Jun 09 10:31:37 2010 +0100
+++ b/userlibandfileserver/fileserver/sfat32/sl_drv.cpp	Tue Jul 06 11:40:58 2010 +0100
@@ -49,6 +49,7 @@
 {
 	 if((iMount != NULL) && (iMount->LocalDrive() != NULL))
 		{
+		ASSERT(iMount->LocalDrive()->Mount() == NULL || iMount->LocalDrive()->Mount() == iMount);
 		iMount->LocalDrive()->SetMount(NULL);
         }