Problem:
At some random point after working with the program for a couple of hours it won't let you save anymore and it won't "undo" a step anymore. I have seen no link between something I did with the program and the reoccuring of the problem.
I reset the preferences which solved the problem temporarily, but after a couple of minutes I was again unable to undo a step or save.
Of course, I can export the document as a pdf and thus create a copy of it so that my work is not lost, however, that's not a real solution.
The version we use is Adobe InDesign CS5 on Mac OS X. I can give you the exact details if you'd need them.
What can I do to solve the problem - or where exactly does the problem lie?
