I am running OS X Lion 10.7.2 and have a bluetooth keyboard, magic mouse, and magic trackpad. Over the weekend the behaviour of the right shift key changed in such a way that if I use it to capitalize a letter or shift a number to get '*' or '(', etc. it will randomly lose focus on the window, or jump to another part of the screen (often highlighting part of it so I end up over-typing what was highlighted (say in a text entry form such as this).
I can really reproduce this in Terminal, just by typing
********* (and have reproduced it just now in Chrome by doing so). This is frustrating beyond words, and I've gone through and disabled Mission Control keyboard shortcuts, I've stopped almost every program to see if something like that was reproducing it (new things installed/updated shortly before this started happening was MenuPop and iTerm2). Initially I suspected LaunchBar (having read about oddness with the clip merge feature, which I've disabled) and MenuPop, but with both of those not running, I still get the same behaviour. In Terminal it's the worst, but does happen randomly with other apps where I'm entering text.
Has anyone seen this before? Google isn't giving me much help.
This is a screenshot: