PC 3400+ AMD Athlon 64bit Newcastle 512mb HyperX Kingston RAM 80gb SATA HDD 9700pro Radeon 128mb Win XP Pro while playing call of duty 2 for about 3-4mins the monitor would go into standby. The system would used to play the game fine but im unsure whats happened. Its quite a fresh install of Windows and im always careful what i install. Im running McAfee security centre if that helps. The BIOS is up to date this has not been changed since it has been working fine. The drivers for the 9700 pro are rad_w2kxp_omega_2687.exe, i have always used these too. I have recently bought a new PSU, its a 300w cause the other one died but its the same but newer so i cannot understand why there would be a problem with this. This has also happened with my friends PC (exactly the same) but he is using a 6600GT 256mb card! and has 1gb ram!??? I have tried - increasing virtual ram - changing drivers for gfx i need help!