Now this is an odd one. I've read about the problems with Flight Sim X in local mode and when I bought the sim I witnessed the problem myself. The touchscreen goes black (not blank, black. You can still see the mouse cursor, but not the TB profile) just like in all the OpenGL games. The strange thing is that when I forgot my Lock on -profile on the screen didn't go black when I started FSX. I could even push the buttons and at least ESC seemed to work just fine. I tried a FS9 profile I downloaded here and it didn't work, but again when I loaded the Lock on -profile, no problems.
I tried it a couple of times with identical results, but it sounds so strange that I don't believe it anymore while typing this. Anyway, here's the profile that works for me when the others don't:
http://tols17.oulu.fi/~ailomaki/lockonprofile.zip
It's a modified profile, I got the original from here. If anyone wants to try it with FSX I'd be interested in hearing your results. I don't know what would make it so special, it does have the new TEWS screen, but I find that a pretty unlikely explanation.
I'm running Windows Vista with almost new nVidia drivers (8800GTX). Pretty much every OpenGL game blacks out the touchscreen, which unfortunately excludes Il-2 from the list of TB-compatible games. It seems to be a problem with nVidia and Vista, if someone can confirm it might be useful to mention it in the compatibility lists.