MSBOCK

I'd say air isnt going to help. Sounds like corruption of ths O/S or a
virus/malware infection. If it was just shutting down i'd say
overheating- but that doesn't cause a reboot.

Corruption of the O/S can be repaired without affecting your programs
or documents. First I would check your system for viruses or malware as
I strongly suspect this is your problem.

Malware scan/clean
(one of the best programs on the market, doesn't require a download and
scan/cleans for free. This antivirus program has won more awards than
either Mcafee or Symantec's Norton, and Is used my Microsoft to protect
their servers. I use it myself.)

ESET'S NOD32
'Free ESET Online Antivirus Scanner' (http://www.eset.com/onlinescan/)



Steps to repair operating system installation-
place xp disc in drive, restart.
at prompt, hit any key to boot from disk
follow prompts as if you were going to reinstall O/S
this will bring you to your installed partitions screen, at this point
choose to repair existing installation instead of Install


--
rive0108

Alienware Area-51 M5790
Vista Ultimate x64
T7600G Core2 Duo 2.33 Ghz (overclocked to 2.66 GHZ)
ATI Mobility Radeon x1900 256 MB
1920x1200 WUXGA
4GB DDR2 PC5300
HP digital Tuner express card
200 GB 7200 RPM HDD RAID 0