One thing just popped into my head - If I remember correctly, the mini crash dump file is erased the moment you hit the 'OK' button upon windows reboot when it warns you about it. If you want to save it, leave the warning on screen, make a copy of the file and save it somewhere else. Basically, I am saving you the headache of trying to find it, that is if you are trying to find it.
-S
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