When converting files from CS3 or CS4 to CS6 the values for document show as letter. This effects several scripts that I run that reference doc size. Wich should be a custom size. This is not affected during conversions from 5 and 5.5.
I'm locking this thread in favor of your other thread, Array in CS 6 NOT WORKING, because I think they're the same problem. But it's....awful hard to tell. That thread has gotten more replies though.