I have a MS Wireless 2000 mouse that works fine, until I put my computer into "sleep" mode. When I wake it up, the connectivity on the usb desktop receiver is lost, and the mouse will not work. I checked the devices, and everything is "working". The only fix is to re-boot. I downloaded and installed the latest version of Intellipoint software for Vista, but no luck. My only problem is that I can't figure out which USB port it is connected to when I look in Devices. Any suggestions? I am running a Gateway GT5028; 32 bit; AMD x2 3800.