Photoshop throws up 'strtable error' screens on opening files - OS X Mavericks or Adobe issue?

Opening CC2014 Photoshop files keeps throwing up error screens warning of a 'strtable error'. Anybody have any idea what that is about & how to fix it?

Having just moved to the new MBP and at the same time upgrading to CC2014 means I'm not even clear on whether the file issue is an Adobe or Apple message.

Clicking 'OK' on the warning screen allows the file to open seemingly without problems, but it obviously doesn't promote a relaxed attitude to file integrity.

I've read suggestions that the issue is related to files having the wrong extension, but that's not the case here. Some of the files are legacy files from CS Photoshop; but many are created in the last few days by the same CC2014 PS app that's trying to open them.

Any insights gratefully received...

Message was edited by: This username is not taken. for clarity