Its a long shot on here, but I thought I would give it a go.
I have PS CS4 and have never had a problem with using photomerge until now with my new camera Canon 5D mk2.
PS runs the photomerge program up until opening the finished image and nothing opens/ appears, I’m very confused and irritated!
Any ideas out there? It works with old files taken on my old Canon 5d Mk1 no problem. I have even tried it on a friends CS5 and it still doesn’t work there. Tried it in RAW and JPEG, still nothing.
Cheers if you can shed any light on this.

Ok just ignore this as I have found the problem, the files I was trying to merge contained a letter Å in the title and photoshop didn’t like it!
Happy days!