"RAM, HDD both pass diagnostics, and I'm not seeing stability issues in
Gutsy or Windows XP. Video card and CPU both running cool. This does not
appear to be a hardware problem of any type; it's isolated strictly to my
installation of Hardy. I've wiped/clean slate installed three times, to two
different (known good) hard drives.

I'm seeing this with or without restricted ATI driver, with Compiz on or
off, and at completely random times."

#8 at http://ubuntuforums.org/showthread.p...ghlight=freeze

Linux just works!