Where can i get this SM bus controller driver? My Toshiba Satellite U500-11f can't recognize my toshiba optical mouse. It says "USB not recognized". My chipset is Intel G45 express. I already visited this site. Support for the Intel® G45 Express Chipset still i cant find the said driver. Even in the toshiba.com, i cant find the said driver. Please help me. I've been goggling for 5 hours now.