I have CS5 and CS5.5 and I can open old and new projects in both CS5 and CS5.5 with no issues at all. it just renames the the project xxxxx_1 and if you open it up in the CS5 agian it renames it xxxxx_1_1. No problems. Make sure you have set your previews ect to the same place.
It seems to be that CS5.5 dont like some of the *.mov files.
That's actually true. Adobe is aware of the issue and is working on a fix.
hey Darren, yes but its not a rename issue. Think it has to do with 5.5 compabillity.
Hey, ok so they are working on that...hope to see a fresh update soon then