I have windows xp running on my desktop and need to know if there is any way to disable the driver signature verification. What I'm trying to do is use a ps3 controller with my desktop; i downloaded a driver and installed it and the controller works in calibration mode, but not when i try to play an actual game. I have searched and searched on the net for a solution, to no avail. There appears to be an F8 boot option for both Vista and Windows 7, but I can find nothing for xp. I am wondering, is there a cmd prompt that i could run, or any way to fix this; i have also searched tirelessly through all of my options menus. any help would be GREATLY appreciated, thank you in advance, bradco.