Hi everybody, I'm new in your forum. I decided to go here and tell you my problem for you try to help me. Well, a few months ago my computer works great in games. Need for Speed World, Euro Truck Simulator 2, Hot Wheels Beat That, GTA San Andreas, this type of games run perfectly. But, from nothing, it became slow in games, with lots of lag. I tryed to install other NVIDIA drivers, since the lag problems started a few weeks after I updated the drivers. But it worked nicely with that drivers that weeks! The hard drive of my computer has brocken down, and it take a new hard drive, now it's running Windows 7 (I have Windows Vista before) and everyting that was in computer's memory was deleted. I think maybe it was the lag problem, until I tryed to play Need for Speed World. The lag was still in the computer! I asked to the man who fixed my computer and he said the video card was working fine (in internet says a damaged video card can make lag). Well, the computer works fine with internet, videos, music, all the other things that are not games demanding (I'm portuguese, I don't know if it's the right word), because with the PS1 emulator games works fine, or with Midtown Madness 2. Some informations about my computer: its a Acer Extensa (laptop), with a Pentium dual core cpu processator, directx 11, and the video card is a geforce g105.