Quick launch buttons and touch functions not working post win7 upgrade

Question

I have several problems that I think are related.
1) When I rotate the screen and then bring it close (as in flat) to the keyboard, the screen goes blank. There is no key combination I can find that restores the screen. Putting it back in notebook orientation doesn't do anything either. Only thing to do is a hard reboot.
2) the quick launch buttons on the screen edge are not functioning as follows:
a) the hp mediasmart button (the one with the wave) doesn't work
b) the screen rotation button produces the same problem as 1) above
c) the third button which looks like either gears or a sun (I don't know what it should do) brings up the windows mobility center, where I have found problem number:
3) On tablet PC settings, the display tab, there is one display: 1. mobile PC display
on the same tab, there is a setup button. The next screen says:
pen input
touch input
Regardless which one I select, on the following screen (where it says Press this screen with ....) when I press with either my finger or the pen, nothing happens. Which seems like either:
it thinks another screen is active or
the touch components are completely non functional.
4) Not surprising, the touch functions are completely non-functional
I have installed all of the drivers for this TX2-1025dx for Win7(64bit) per the HP support/drivers page.
Not all of them resulted in a clean install. 
Here are other drivers that I had problems with (meaning that I got an error message, it failed, it had to be done more than once, something else broke, etc.)
AMD AHCI  - started catalyst installer then failed
Authentic fingerprint driver - "dpinst64 not marked for installation"
Ntrig Duosense - had to do this one multiple times to get the fingerprint reader to work
HP Mediasmart MVP - hung in CMD
I have checked that all of the startup services are actually enabled in msconfig including quick launch buttons, hpwuschd, and media smart. Nothing is disabled in services.
I have reinstalled the quick launch buttons driver for this product from December 2009. (There is an earlier version from November.)
I installed the bios upgrade (before win7, actually) it is currently F.25
I have also eliminated EMF possibilities.
I have searched the forums, and while I have found some interesting clues, I don't see anything like this - at least with a solution.
Any assistance would be greatly appreciated as this thing is quite useless to me as it currently functions. It is not a tablet anymore.
TIA

Answer 1

[knock knock] Helloooooo??!!??
Installed 6.50.9.1, which is in between the last two quick launch button (QLB) drivers (that did not work). Also fixed the lightscribe and mediasmart DVD installs. Same problems, no touch or pen, and a new bug I discovered with qlb
First, if you search for tablet in the start menu, there is a selection to set the tablet buttons to perform certain tasks. When you run that, it says that teblet buttons are not installed on this pc. Doesn't matter if QLB is installed or not - same error. Hmmmmm. Check with your pc manufacturer..... I think I am doing that. I am starting to feel like I am working for HP.
Next finding: Using mobility center, I found that if you orient the screen to landscape for the slate config, and then rotate the screen, it does not go blank. However, if you rotate the screen back to notebook, it goes blank. And of course it keeps that upsidedown config when you reboot, too. So, the way to recover from that (because you really need a keyboard if you don't have a working pen and touch takes 30 sec to respond) is to keep trying to get touch to orient the screen back to landscape for notebook. Then rotate the screen to landscape for notebook. And uninstall the QLB driver that doesn't work and reboot. But after that, touch and pen did not function.
Since touch and pen had previously been restored when I uninstalled QLB, I reinstalled MVP and smartmenu coz they were the actions that I took the last time before touch and pen returned. Didn't work this time, tho.
I decided to do a system restore back at the point that I had used HP Advisor, since that was the last time I made note that pen and touch were working. Restore failed because a sfi.dat file was not found (and search didn't find it anywhere either). I tried 5 different restore points, before and after that one, and they all failed. But the first time around, I had touch on the logon screen, just not after windows started. The next time, I had touch but not pen. The next time, I had touch and pen, but only for a period of time (I think HP Advisor may have been the intervening event) before they stopped working.
Oh, and HP advisor does not appear to be actually installing the things on the action list. That could be an issue with Comodo, but it really looks more like an issue with that "mother may I" message from Windows asking for permission to run the program. Often as not, windows reports that the program is not responding. Closing the program with that dialog box actually gives it the kick in the knickers it needs to complete.
A not so great workaround is to use the mobility center to orient the screen when you want to put the thing in slate mode. You can pin it to the task bar (with a little fiddling).  Touch is extremely slow to respond in slate mode. For example, it took about 3 minutes to get the screen oriented back around to notebook config, which is 4 "clicks" if things are working right. Pen works sort of OK (although I haven't tried any writing) . Gestures for scrolling do not work.
I am done with the troubleshooting until someone comes up with other targeted ideas.I have been keeping detailed chrono notes.
Again, I hope the information here leads to a solution. This unit is not a functional tablet and I don't want to stay with Vista, neither should I have to since this is supposed to be compatible.