Do you have another computer that you can try that mouse with?
One of the things that I noticed is that the part of the registry which controls the power to the USB ports sometimes will believe that the device that has been plugged in is inactive and will remove the power to that port. The Selective Suspend is the feature in the registry that controls this, it can be disable with a change in the registry, this can be risky for a novice. One other thing that you can try though is to open the Device Manager and scroll down to the Universal Serial Bus Controllers, double click on it to expand the tree, double click on the USB Root Hub and then click on the Power management tab. Remove the check mark from the box next to Allow the computer to turn off this device to save power
Go to Start, right click on My Computer> Manage> Device Manager.
Edited by dc3, 14 January 2009 - 10:15 AM.