Pro tools LE Problem with ctrl + start (windows) key

I post thi as well, already posted on duc, the digidesign forum.
Here's my post on Duc:
"Hey guys I got this huge problem, before in the past 5 years happened just two or three times but now it seemed gone forever.
When I try to unload a pluging by clicking with the left mouse on its name (on the plugin list) and holding the ctrl + windows key, my protools just freezes for 3 to 4 seconds then when it defreezes it just act like I'm holding the windows key while I'm really not.
So I cannot play the session by clicking spacebar, I cannot zoom with my mouse wheel nor I can use the Function keys (F1 F2 F3 and so on) and do other things because of that problem.
I got protools Le 7.1 and digi002 (mixer version), I didn't istall other plugs or software, the only thing I did was to install DFHS 2.0, for the rest the configuration was as just as one month ago and one month ago it worked like a charm :cry:
What can I do?"

cheers