My problem is that sometime I have to click 2 or 3 times for my system to recognize the action. In Firefox, Thunderbird, IE, World of Warcraft, anything. I have tried 2 different mice. One USB and one PS/2 and they both have the same problem. I have tried uninstalling the driver for the mouse, restarting and reinstalling and it didn't work. I am running XP Pro SP3. Any suggestions?