I have a Toshiba Satelite C55D-B5310 part number PSCN4U-00T019 and the touch pad will not work. I went to Toshiba's website to download and install and once i tried to install it it fails every time. I then went to Elans website to get a manufacturers driver but when i try to install it fails too. Does anyone know were i can get a proper driver that wont fail during instillation?