Hiko on 27 February 2010
Try with another mouse and see it works.
If it does work, then it's a compatibility problem with Windows 7 and/or your motherboard.
Install the latest Firmware for your motherboard and install the latest drivers for your mouse.
If it does not work, it's most probably your motherboard.
At some point, something must have come from nothing...
...nothing can come from nothing...
Essay Pro