Touch screen not recognized on U925t-S2301

Around October 9th (I believe) we had some type of Windows update on my Toshiba U925t-S2301 tablet PC. Since then the touch screen on the PC will not work at all. When I go to check the Tablet PC settings it doesn't even exist. It now shows in the system information that no pen or touch capabilty is recognized for my display, when obviously this is a touch screen that was working fine before. I ran the Toshiba Service Station app and did all of the updates and still no luck. I also tried uninstalling the applicable HID drivers and restarting the PC and still no luck. Does anyone else have any issues like this over the past couple weeks? Does anyone know of any other solutions? I waited for 3 hours on Toshiba's support phone line and never got an answer. Absolutely the worst phone support I've ever experienced.

Hi.I have the same problem, my u925t lost the display, is only possible throught my hdmi port to the TV I comment my experience if somone know what could be the problem Yesterday when I turn  on the computer, I did as tablet, then when I try to convert in laptop the display turn off, then when you slide back into a tablet, the screen lit again. I slide very slowly the display and could convert in laptop again
It worked well all day, turned it off and turned on as a tablet and laptop and everything worked fine.
This morning I had the same problem the day before, started aa tablet,  only this time, when I tried to do the same and the screen did not turn over at all.
In my opinion the problem is when you go to slide the screen, the computer gives the order to move from one mode to another.
And restart erasing the entire disc and got no results
Another thing  that was decomposed was the front camera and microphone

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