diff -r 5b5d147c7838 -r bbf8bed59bcb userlibandfileserver/fileserver/sfat32/sl_drv.cpp
--- a/userlibandfileserver/fileserver/sfat32/sl_drv.cpp	Tue May 25 14:09:55 2010 +0300
+++ b/userlibandfileserver/fileserver/sfat32/sl_drv.cpp	Wed Jun 09 11:10:19 2010 +0300
@@ -49,6 +49,7 @@
 {
 	 if((iMount != NULL) && (iMount->LocalDrive() != NULL))
 		{
+		ASSERT(iMount->LocalDrive()->Mount() == NULL || iMount->LocalDrive()->Mount() == iMount);
 		iMount->LocalDrive()->SetMount(NULL);
         }