First of all I want to say that I am not sure that the category where I posted is the right one, so please move it in case is wrong.
Now let's get to the subject. These are my specs:
Phenom x4 9650 2.31 GHz
6 GB RAM memoy
Asus M2N-E motherboard
HD Samsung SpinPoint F3 1TB
Video Gigabyte GTX 460
Power Everest 85Plus 600W
Mouse Steelseries Xai
Monitor Samsung 2233rz 120HZ
Keyboard Razer Arctosa
Windows 7 x64
The main issue is related to mouse which is not working properly, it has a delay in response. In the past 2 years because of this issue, as the FPS games are unplayble, I did change a couple of mouses: 2xG5, MX518, Razer Copperhead, Intelli 3.0, Mionix Naos 5000, hopping the the problem will dissapear and it didn't. So I assume that it has to do with the USB.
I noticed in the past days that when the mouse is pluged in a new USB where the mouse wasn't before the driver is installing and after that the mouse works excellent for a couple of minutes, than slowly the lag is starting. I tried this 3 times (as I have 4 USB) and each time was the same.
The only thing that I could think of looking on the internet si the USB Bandwidth however I didn't find a way to change this.
So please if you bumped into this issue before or if you have any idea let me know and I will check as I don't know what to do else.
Also I want to mention that the mouse is used at a polling rate of 1000 HZ, both keyboard and mouse are pluged in USB, motherboard drivers are the latest from Nvidia site.