I received a PC with not-working usb ports. Strange thing is that when I plug my very basic USB mouse which in other PCs works just fine, the laser flashes (so the voltage is there) but it doesnt work, the cursor is not moving. The PC has windows xp and motherboard Asus M2N-E.
Was thinking that the problem may be driver-related, but I booted the pc from Linux CentOS 6.5 LiveCD and the same situation appeared. Laser was flashing, but the mouse cursor wasnt able to move. The ps/2 mouse works just fine. In BIOS USB and USB2 and USB Legacy are ENABLED.