hi, i have a 8GB ram 1TB hard disk hp pc with graphics memory of 512mb. i have been using my pc for gaming and it worked well on almost all games i have tried. but recently most of the games started to lag and some of them even have a cutting frames. even the game with the lowest quality and size (40 mb to be precise) has that cutting frame thing. when i say cutting frame i mean the whole screen doesn't behave the same some part of it will be okay and the remaining part flashes white light rapidly. but i am sure my screen is good because i have no problem with any of my applications i use.