This is an odd problem that popped up recently. When I switch to an app by either command-tab or via Alfred, the app switches, and I go to the space but the window is not activated. Simple example: I command-tab over to TextEdit, which already has one window open. Ordinarily I could just start typing and all would be fine, but lately typing only generates the "stop hitting the keyboard" sound, because the app has switched but the active window is not active. I have tried removing some recent startup items to rule them out, but they do not seem to be the problem. Any suggestions? Thanks!