I am still having problems with my mouse opening up files. I have tried Spybot, Norton antivirus, Avg and they didn't find anything or they fixed it. Can I go back to windows 98 or am I better to fight this virus or mouse till I win? Also, what does biostar do and should I update it. It is a M6VLR board about a month old? I removed the software for Micosoft cordless mouse and reloaded it, but it will not work. I am using an old mouse now. The technical file says it is working properly. There are times it works better than others. At the present as I type it is working okay, but most of the time it will go back and start opening up flies all over the screen. It is not as bad on a CD data disk, once I get there.