I have a Dell Latitude D630 laptop and a Microsoft Wireless Notebook Optical Mouse 3000. When I first got the mouse it worked fine right when I plugged it in. However I had virus trouble and had to get my computer wiped. My teacher at school reinstalled all the initial software, yet for some reason the mouse won't work. My computer keeps saying it's trying to install and then that it was installed unsuccessfully. I even tried a buddy of mine's mouse that I know for a fact works, and my computer still won't use it. It seems fine, but the pointer just won't move. Any ideas on how to help? Thanks.