I'm using the Windows key quite often in my daily work and it keeps getting "stuck".
I tried two keyboards (One USB and one PS/2)
I tried to mess with the Sticky Keys
definitions.
Eventually, when it happens - pressing the Windows key a single press releases the "lock" and solves the problem.
It happens several times a day - so it is quite annoying. Especially when I start typing and multiple windows start to open or the desktop appears suddenly.
Any idea why it happens and how to solve it?