I have just upgraded to Windows 7 RC build 7100 (32-bit) on my HP Pavilion tx2508ca from Vista (Home Premium, 32-bit) and for some reason, the touch capability of my laptop does not work. The stylus works fine as a mouse substitute, but unlike before in Vista, where the back of the pen works as the eraser in certain programs (such as OneNote and the Tablet PC Input Panel), now, the back is just like the front, acting like the mouse. I tried uninstalling the Wacom drivers and reinstalling them, using the files provided on the HP website, but to no avail. I have also tried uninstalling the Wacom drivers, restarting the computer, and allowing Windows 7 to take care of the driver installation. That did not work either. (Though during the time when I just restarted the computer after uninstalling the drivers, the touch worked for about a minute before it stopped working... that's when Windows finished installing the first of two drivers.) I have tried going to the "Tablet Properties" and try to calibrate both my pen and the touch, but when I click on the "Calibrate" button, an error message pops up saying, "No suitable hardware was found to calibrate. Windows supports calibrating only integrated digitizers."