My problem was that whenever I tried to run Bridge CS6, Bridge CS5 would open instead - even when I went to the Adobe Bridge CS6 source folder and double clicked bridge.exe.
It turns out that there's an easy fix. The problem is that Bridge 5 is still loading itself into your memory when you start your PC. So, with its 'foot in the door' in your RAM, it automatically launches itself whenever you try to launch Bridge - even if you try to launch a different version.
To solve the problem:
- press the windows key
- type msconfig and press enter
- select the startup tab
- scroll down until you find Adobe Bridge CS5 (or CS5.1 or whatever), then uncheck it
- Click ok, and restart
That should solve it, as Bridge 5 should no longer load itself up on startup. If the problem persists however, try the following:
- Open Bridge 5
- select edit/preferences (or press Ctrl-K)
- from the list on the left, select "Startup Scripts"
- choose disable all and click ok
- restart the computer