Right click on ff7.exe and go to properties. Under the compatibility tab, make sure nothing is checked and that the program is not running in compatibility mode. I'm on linux, so a Vista user should probably make sure I haven't missed anything.
EDIT:
Oh, and Aali, I woulder if Qhimm could add a forum for this? This is a 26 page topic, and it's only going to get longer as the driver becomes more widely accepted. It seems like a separate forum would be excellent, both for release notifications and tech support threads.
If nothing else, you may want to start a new topic with each release.