Hi i sometimes play games and once when i was playing for about 30 mins my pc suddenly went on standby, and it was a locked standby, because there was no way i could get back. with normal standbys, i.e. when i click on turn off computer and then standby, i can get back fine with the mouse. What is causing this? All the power options are set to never turn on standby or anything like that. This has happened on quite a number of occasions already. Thanks in advance.