Hey guys, I'm not sure if this is the right place to report Group Chat bugs or not, but we're using Office Communicator Server 2007 R2 Group Chat, Version 3.5.6907.0.
The problem is that Group Chat places a hidden window in the top-left corner of the screen, and intermittently it blocks mouse mouse hovers and clicks. Many people in our office experience this, so it's not just myself. Closing Group Chat fixes the problem, and when you click Exit on the Group Chat tray icon, you can actually see the "Logging out" window appear where the mouse clicks are being blocked.
Here's a pic showing where the transparent Group Chat box is lying over my Visual Studio app, so I'm unable to click File, Edit, View, or Git. I used UISpy to find and identify the transparent window.
- Dan - "Can't never could do anything"