blue screen multiple times per day

I am getting Blue Screen of Death many times per day after a good install of Vista2. How do I diagnose and fix this - it is driving me crazy.
Blue screen pops up at random moments and then the system crashes and restarts. Also am getting screen freezes requiring reboot. HELP!

Have you tried reinstalling Vista?
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Craig, Thanks - I tried to re-install but Vista said I did not have enough disk space. Is there a way to re-install/verify all the drivers? I read somewhere here that that might work?
"Craig Nykamp" wrote:

Have you tried reinstalling Vista?
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Not enough disk space??
Hmm, suppose that's due to the new Vista rollback to old operating system thing. Maybe do a full format through an XP disk and then install Vista after that onto the fresh, blank disk?
Craig.
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