Ridiculous Lag while playing any game

[Peopshu]

First off my specs are:
Processor: Intel Core 2 Quad CPU 2.66 GHz
RAM: 4.00 GB DDR3
64-Bit OS
Graphics Card: ATI Radeon 4550

Basically the problem is that, I used to use windows 7 ultimate 64 bit and everything ran smoothly.

Today, I reformatted my computer reinstalled Windows 7 and my games for example, CS 1.6. However, I noticed my game itself was lagging, extremely choppy it was like playing a frame by frame picture game. So, I looked around everything, all my drivers were installed correctly no errors so far; all updates are installed. Then, I noticed my ping, latency were all fine. I went on youtube, and random online game sites to test if anything else was the problem and they all ran smoothly, no lag, no choppy pictures or anything.

I need some help, Thanks.

 

[Lordbob75]

Try reinstalling the game. Also remove and reinstall your drivers.

~Lordbob

 

[killa4eva50]

I think this is a driver problem. Uninstall your current video card driver then install the latest driver from a website for your card.

 

[haxcid]

disable your sound card in device manager and play your game. Does the lag persist?

 

[Peopshu]

Problem fixed. Thanks guys! Apparently after reinstalling windows 7 the problem was fixed. I'm guessing it may have just been an installation problem. Thanks again.

 

[AstaLaVista]

Glad you solved the problem but, making sure you have the latest Ethernet, video & sound drivers is still a sound idea to avoid future issues with gaming.