Photomerge CS 6 is not working, any hints?

Question

I am trying to create a simple three image panorama.  I shot the images (an interior) using a shift lens, this has always worked very easily in CS5.
in Bridge I go to the Photoshop photomerge feature, select the three files - it opens up one of the files creates the photomerge layer but ignors the other two files.  I have tried many different configuations, making sure all three files are highlighted in blue,  auto and perspective always the same outcome one image plus an empty photomerge layer.
I've read through the archives that seem to address hdr - I've repaired my permisions using disk utilty do I need to throw away my photoshop permissions and if so how do I do that again? (mac 2008 tower 10.6.8)
Thanks for any help and or insights.
Jeff

Answer 1

With all do respect this is a stupid response.
I’m afraid the due respect may be a bit low there.
Any other advice on how to fix this or am I stuck on throwing away photoshops prefences every other try?
Just the generic …
Boilerplate-text:
Does turning off »Use Graphics Processor« in the Performance Preferences and restarting Photoshop have any bearing on the issue?
Are Photoshop and OS fully updated?
As with all unexplainable Photoshop-problems you might try trashing the prefs (after making sure all customized presets like Actions, Patterns, Brushes etc. have been saved and making a note of the Preferences you’ve changed) by keeping command-alt-shift pressed on starting the program or starting from a new user-account.
System Maintenance (repairing permissions, purging PRAM, running cron-scripts, cleaning caches, etc.) might also be beneficial, Onyx has been recommended for such tasks.
http://www.apple.com/downloads/macosx/system_disk_utilities/onyx.html
Weeding out bad fonts never seems to be a bad idea, either. (Validate your fonts in Font Book and remove the bad ones.)
If 3rd party plug-ins are installed try disabling them to verify if one of those may be responsible for the problem.