I had the same prob with my 10.5 screen from them.
It did not like the drivers at all...
This is the email I sent tech support... they told me to post it here...
I have the 8" TFT Monitor. It worked fine on my computer with Windows XP. However, It does not seem to work with Windows Vista. I touch the screen but it does not move the mouse.
I installed the Vista drivers from the included CD.
The Touch Kit recognized the Touchscreen and it appeared under the "Installed Touchscreen Controllers".
In Windows Device Manager, the Touchscreen was recognized and appeared under "Mouse and other pointing devices".
I tried restarting the computer.
I tried uninstalling and reinstalling the drivers.
I tried doing a four point calibration, but could not because it would not recognize when I pressed the flashing X