I dunno if it's a touchpad or a trackpad I have but there was a program along with it called like Apoint or something that would run and allowed me to change the settings on the touchpad. I have looked and can find no other way of accessing the touchpad settings. Well the last time I remember it working was before I updated Windows Vista, well now the program no longer runs

I had it set to disable the touchpad when an external mouse was detected and it no longer does that. I went into its folder located at C:\Program Files\DellTpad\Apoint.exe and double clicked it and nothing happened. It use to run at startup but no longer does and I checked and it is still set to run at startup but does not, any clues as to what is going on? I believe I am using Windows Vista Home Premium.
I managed to fix it by going to Device Manager in the control panel uninstalling Dell Touchpad and rebooting.