Hi,
I installed the trial version of CS6 (Mountain Lion) the other day and created some files, the same files opened for me on another computer using CS5 (Mountain Lion) whilst I was waiting for the full version to get installed onto my Mac.
For some reason now the files are either corrupt or not opening (Could not complete your request, an error has occurred or unknown file type).
The only difference between the two installations of CS6 is that I only downloaded the trial version of individual products and now I've installed the whole master suite.
Please help!!