usb mouse works on 2 ports from 4



hello,

I bought a new usb mouse for my laptop, but it happens something very
strange when I plug it:

on my laptop I have 4 usb ports but the mouse will work only when
plugged on two of them. (the ones on the left side, I am right handed
so it's really uncomfortable)
when I plug the mouse on the other two ports widows tries to load a
driver, but it says it cannot find it... and mouse stays unusable.

I have win xp media center edition + service packs

I tried the mouse on another laptop equal to mine (same model and OS)
and I got the same problem.
I now know that the problem is not of my computer in particular,
caused by some hardware failure or software misconfiguration.

does anyone know how to solve it?

thanx alot
Giulio

.



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