Problem with usb ports

Hi! I have got a problem of connectivity usb since one month on my computer: some ports are blocked while few secons, about 30 seconds and it disapears. The big problem is with my mouth which is on an usb port and becomes freezed, but the phenomenon doesn't exist with my wifi keys, I don't understand! And more, in PC games, I never have the problem!
Please, I don't find a solution since a few weeks, can you help me?

My computer: Athlon 64 3000+
Nvidia 6600 GT
1024 MoRAM
Windows XP Pro
Motherboard Asus A8N-E

Sorry for possible mistakes, english isn't my native language.

Take mouth off usb port ? I'm kidding your English is fine , have you tried connecting your mouse on a ps/2 port ?

Try an adapter like this :

http://sewelldirect.com/ps2tousb.asp


or this : http://sewelldirect.com/USB-to-Single-PS2-Adapter.asp

In first thanks for your answer. Then I have already tried an adapter like this, and with my cordless mouse it didn't work. But I'm going to try again, maybe I need a driver for that no?

Have you installed SP2?

Yes SP2 is on my computer. Maybe it is a virus, because the problem is arrived without doing something, but I have tried many Anti-virus and nothing so?

Please, give me a solution.

Uninstall mouse drivers and then install them again, if that doesn't work, give system restore a go, could be a ms update has interfered with its drivers.

you can try uninstalling the whole usb controllers tree

then restart and update your chipset drivers: nForce4 6.86 Windows XP 32-bit

I used to have the same problem before. I reinstalled my OS