well have had it working before , and i didnt have to install anything, the was with win xp im beginning to think it could be something to do with the usb hubs or something, when i plug in the keyboard soemtime its shows mk249c connected at the bottom sometimes not but it alwasy shows in devices as composite device and says working properyly, its really pissing me off as it works fine with my laptop and another pc? what do i do???? please help any1 know how i reinstall the usb drivers or know where the evo drivers or any updates for xp are?