Originally Posted by gfsound

So I have a VAIO VGN-SZ120P (1.83 Duo, 1 GB RAM, XP Pro SP2). All of a sudden, the touchpad started operating BACKWARDS- up is down, down is up.

I have tried uninstalling/reinstalling the driver. I checked for most recent driver from Sony (none available). After several attempts at uninstalling the touchpad totally, on reboot I believe windows automatically finds the/a driver and installs it again. It is working temporarily now, but I was hoping to find out what could be causing this issue. The only significant change made within last week was updating BIOS to recommended version from Sony. I have seached high and low for a solution to no avail. Any thoughts or help is appreciated.