Hey, Please help me-I have a little problem..

Hey there...
I have a problem:
Whene I'm trying to takeoff my computer restarts itself, then I did what Microsoft Support told to do (http://support.microsoft.com/kb/315192/en-us?spid=11941&sid=global ) and it didn't work, now the computer makes me a blue-screen and a wierd sound (brrrrr) and I need to restart it by myself...
My Computer:
1Gb Ram
ATI Radeon X700 Pro 256mb
200GB Space

Can anyone help me?

Overheating, add a fan in the rear to let out more hot air and open the case and clean the fans and heatsink.

if it only happens with fs it can't be a fan problem. It must be something to do with the game. the only thing the burr sound could be is the hard disk trying to load a weird file

The flight simulator program is an extremely graphic intensive program.
This may be the only one like that he runs, that's why he only overheats with it.

Hi! I have the exact same problem. I've played tons of games on my pc and never had problems. But when trying to take off with fsx the pc blue screens and reboots!!!
It has to be a game problem. If anyone finds a solution please post it!