SmashingSeltzer,
I have the ZX4951. Here is what i did to get full functionality back, just like it was in the release preview of Windows 8.
I uninstalled any IdeaCom drivers and programs I have tried in the past few weeks to fix the issue.
(This part is very important.)
I downloaded the IdeaCom Touch Driver for the ZX4971. Select Windows 8 x64 from the Operating System drop down, and then download the driver.
I installed the driver by running the setup.exe, restarted the computer and all is back to normal.
Hope this works for you also!
Thanks,
Dan