Actually there is no visible touchpad application in device manager. No tab on HID-compliant or PS/2 Compatable mouse to change it. The F5/Fn function was tried. I have downloaded and used the following drivers and suggested fixes from various sites:
- DELL_MULTI-DEVICE_A07_R262123,
- DELL_TOUCHPAD----POINTING-ST_A11_R231736,
- E6500-win7-A02-R296904,
- IPx86_1033_8.20.468.0,
- R203578, R300780,
- HP sp40715
Just naming the ones in my download file. This was not a problem until I had to get my computer reloaded due to some missing files after chopping out too many when removing some malware. (yes, the malware is gone) The only thing that changed was it went from 32-bit to 64-bit. It used to have a function that disabled the touchpad when a USB mouse was plugged in and it told me when it was in effect. This is also a problem with my boss' Dell Vostro using an Alps Touchpad. The IT depatrment has fixed the problem with his, but that didn't work with mine.
And Dell states they do not have a solution to the problem as per this site.