When I'm away from my office mac I typically login via screen-sharing or VNC from home/another mac. Lately, after using screen sharing this way, my office mac will have several problems: Command+tab and Command+` no longer work Expose and other F-key functions no longer work ctrl+space to launch Google QSB no longer works Things I have tried to remedy this: Restarting the Finder process Restarting the Dock process Disabling the screensaver Unfortunately, the screensaver still runs... A connected issue? Deleting preference files for Dock/Finder/screensaver etc. The only thing that seems to work is a restart. I usually try and avoid that. System details: Macbook pro 13" OS v10.5.8