I have an Epox 8K7A, with an Athlon XP 2200+,and 512 MB crucial RAM. I have a USB game controller and an optical mouse that are only recogonized intermittently. I changed the mouse to a PS2 connection and have no problems with it, but my controller still has its problem. I can hear the tone go in and out (where the controller is recognized and then unrecognized, recognized, etc. Makes it impossible to play a game. I can't figure out if this is a software problem, or a MB problem. It used to work great with same equipment and this problem started suddenly. I have reformatted my HD and did a complete fresh install of XP. Any suggestions will be greatly appreciated.