Critical Error

[Dan]

My pc keeps rebooting and displaying a critical error
message.
It happens all the time and i have done 3 fresh installs
of xp pro.
It happens when im online/using appz and when im not even
doing anything on the comp :(

you can see a screenie of the error
http://www.members.aol.com/mii2x/error.jpg

Any help would be great as i am stumped :(