pc crashes   

Hi,
   Anyone help me on this,after flight sim opens and 'fly' starts,the pc 
crashes! with a sort of whirring sound is best I can describe,the only way to 
stop this is to reset the pc
   Never had any problems before,what might be wrong

Century of Flight 2004

regards

aga

date: Mon, 7 Jul 2008 04:09:07 -0700   author:   aga151