I installed a new SSD on my D830, and did a clean install of Windows 8.1. Everything seems to operating good, but I need to get a working driver for the trackpad. The only driver I can seem to find is the R165804 Dell Touchpad/Pointing Stick Driver but it only works in Windows XP. I've installed the ALPS win 8 driver that operates just fine except for the buttons are not functional. Is there anybody that has found a working driver?