will_chellam :
Open the manager (right click my computer and then manage) navigate to the event viewer and have a poke around in the application and system sections - any red crosses or exclamation points around the time the computer shut down? Get back to us and let us know......
What antivirus/security are you running?
The event viewer shows the following:
Critical 2/6/2010 11:59:32 PM Kernel-Power 41 (63)
Critical 2/6/2010 11:34:04 PM Kernel-Power 41 (63)
Critical 2/6/2010 7:28:29 PM Kernel-Power 41 (63)
Critical 2/6/2010 4:48:21 PM Kernel-Power 41 (63)
Critical 2/6/2010 3:25:08 PM Kernel-Power 41 (63)
Critical 2/6/2010 4:51:57 PM Kernel-Power 41 (63)
Critical 2/6/2010 3:58:38 PM Kernel-Power 41 (63)
Critical 2/6/2010 3:54:18 PM Kernel-Power 41 (63)
Critical 2/6/2010 3:15:47 PM Kernel-Power 41 (63)
As for AV, I'm running the McAfee that came with the computer. I'll switch when the free subscription ends.
PS - As I was typing the above, the screen went blue (with thin white vertical stripes) and the computer froze. This is my second copy of the computer (the first had bad memory) so I think that's going to end my Dell experience.