My toshiba satellite pro laptop mouse/touchpad has been working normally but lately sometimes the cursor will just move erratically when trying to use it & can just freeze & also disappear. I've tried the update driver but it says it's fine. There is also a yellow ! on the pci simple communications controller if that's related to the mouse/touchpad issue in any way? I have also tried the update driver for this which I cannot & the driver details just says 'no files are required or have been loaded for this device' so I don't think there was any driver ever installed for it anyway but I've not had any issues apart from now with this mouse/touchpad.