Cursor moves anywhere on screen occasionally when typing from keyboard - only occurs when touchpad is enabled and bluetooth MS or Dell mouse connected at the same time.

I have experienced this problem both on windows XP 32-bit and on Windows 7 64-bit.  The problem goes away if the touchpad driver has an option to disable it when a mouse is attached - go figure how this would affect the keyboard.

The problem - I can't find a 64-bit driver for the touchpad that has the disable option for when a mouse is discovered.

Does anyone know where I can find a 64-bit Windows 7 version of the touchpad driver that has this option?