Although it appears most here have moved on from the Elitepad 900 G1, I'm still plugging away with mine. And HP is still releasing software/firmware updates for it, which I appreciate. But after the last "HP Elitepad 900 System BIOS/Firmware and Driver UpdateVersion:18.104.22.168 A (15 Oct 2014) I started having problems with touch going away. The problem didn't show immediately after the upgrade. But a few days the update I came back to the Elitepad after lunch and the touch didn't work. The mouse and keyboard still worked fine, so I tried a reboot and touch was back. Since the reboot fixed the problem I chalked it up to a random glitch and didn't dig deeper. But yesterday it happened again and I wanted to figure it why. In Device Manager one of the two I2C HID devices (the second) wasn't working and had a yellow warning symbol next to it and Error Code 43. Google search revealed numerous entries about similar problems with other similar tablets but nothing specifically for the Elitepad. But multiple sources, including Microsoft, indicated it was a driver problem. Specifically with a driver failing to come out of sleep mode. Microsoft recommended updating to the latest drivers but I had them and that was apparently what was causing the problem. I could downgrade but didn't want to do that without exhausting all other alternatives. After some more digging, I found the a post in the Microsoft Community Forum suggesting changing the device setting to uncheck ""Allow the computer to turn off this device to save power." I tried doing this yesterday and have no problems since. I even deliberately made the ElitePad go into sleep mode and touch was still available after. After even more Google searches and searches on this site showed that this is a fairly common issue and not just with touch. And I seem to remember back in the early days some of the Clover Trail tablets were delayed to market while vendors worked out driver issues. And while cross checking the HP firmware version for this post, I discovered that HP has released Version:22.214.171.124 A (31 Oct 2014) for the driver pack. It doesn't show up for me using the Support Assistant Tool but is listed on the HP Support Web Site. If you are having similar problems, I'd follow Microsoft's advice and update to the newest driver set first. I'll be installing the latest drivers myself and when I have time I'll reenable the power saving mode to see if the new drivers fix the problem too.