My 7100t is refusing to sync. I've tried resets, uninstalling the desktop manager and even using different USB ports without any luck. When i connect it to my computer, the BB just sits on the "Connected to Desktop" screen, and the little arrows that usually appear around the file (not the red wireless arrows in the upper right corner), never appear. They usually signify that there's data exchange happening. The desktop manager on the computer just says "Working" and nothing happens.

Also, I'm able to use the application loader properly, if I open it before plugging in the BB, so that confuses me even more. Any ideas?