06-19-2013 03:01 PM
The first thing I would recommend is the removal of the UltraNav driver from the system. This is best accomplished by using an external mouse to navigate the system. To uninstall the UltraNav driver, open the Start menu and type Device Managerinto the Search box, and then press Enter. Once here, double click on Mouse and other pointing devices, and then right-click on the UltraNav device. Naviage to the Driver tab and select Uninstall... from the bottom of the window. Follow the prompts to uninstall and then restart when prompted by Windows. Windows should install a generic driver for controlling the mouse. This should reinstate the touchpad to working order. If not, then continue using an external mouse for now.
Once the UltraNav driver has been removed, I would recommend trying to use the standard Synaptics driver found here. Synaptics is the company that develops the UltraNav software, so there should be no loss of compatibility/features. I have witnessed several cases where this driver has helped others with mouse issues, so it may help yours as well.
Hope it helps,