Edited:
I just figured out that the "key" getting stuck is the "Windows" key. Not sure why.
Now that I know, I'll see if I can figure out how to 'undo it' in game. Maybe it's my keyboard (Merc Z Gaming Keyboard).
Edit 2: It seems that double-tapping the Windows key returns all to normal. While a pain, it's acceptable. :)
/end Edit.
The issue is EVERY time (not some, every time) I play for more than 10 minutes, and I try set up spell rotations, edit "Keys" etc, eventually my key mappings get hosed, and rather than being able to type a "u", I hit the U key and some random system window pops up. Better example...I'll hit "4" and the 4th window will minimize etc etc.
Exiting GCP and restarting doesn't work. I have to exit everything, and Log Off Windows.
Note: This happened some when I first bought GCP, but is now MUCH worse that I'm running 4 or 5 accounts, rather than 2 like last week.
System:
Win 7 64-bit
Merc Z Keyboard
4 windows of WoW open.
GCP V2.0.0.15



Windows key is getting stuck. Only when I have the GCP control bar 'in front', and usually when I'm editing the keys on the mimic keyboard. Other times too.
Workaround:
Double tap the Windows Key.
Everything else is systems go! :)