7 sometimes thinks the Ctrl key is held down

Here is a bit of a weird issue which I am hoping somebody else has solved.
I am running build 7068 x64, and every once in awhile, I will be surfing the internet, and when I scroll with the wheel on the mouse, the page size will either shrink or enlarge depending on which way I scrolled. Or I would be in explorer, and click on a file, and then another file and they both would stay highlighted. It appears that Window is thinking my Ctrl key is held down, which is not the case.
At first I thought it was my keyboard (Microsoft Bluetooth Elite), so I uninstalled that and plugged in another keyboard via usb, but I am still having this problem. Usually a reboot will clear this, but it comes back seemingly at random. I am not sure what triggers it either.
I should also note that I had this problem in build 7000 x64 as well, but not in Vista.
Has anybody else seen this, or better yet identified and solved this?

This website is not affiliated, owned, or endorsed by Microsoft Corporation. It is a member of the Microsoft Partner Program.