Command Tab - Hyper Switching Problem

[HastaLaVista]

I've searched for this problem and can't seem to find it. I'm having trouble describing it too. . .

Last night all of a sudden, my Command Tab has gone haywire. I hit Command Tab and the Application Switcher window comes up and there is this very fast switching going on. Just like a stuck key. I have tried Command Button and the problem still happens (I've only got one Tab key that appears to be working fine when I press/hold it).

Again, this just started last night, I figured a reboot would clear it up. After rebooting it still happens, even with only two apps open.

Has anyone ever seen this?

Does anyone have a fix?

 

[HastaLaVista]

Uhm,

Never mind. I figured it out.

After just witnessing problems with my arrow keys in Lightroom, I realized it was a keyboard problem. I unplugged my Apple [USB] keyboard from my USB hub, then reconnected it and all is well. . .

Odd.