bsomali,
As you are probably aware, if you read this and other threads, shutting down Wintendo is not without problems. In your case I'm not sure why you do a sleep before exit. Have you tried putting break=on just before you run shutdown? I have seen some cases where that helps.
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Give a man a fish and he will be back for more. Slap him with a fish and he will go away forever.
