I had been working on an InDesign document (72pp A4, facing pages) for some time, frequently going to the Finder, to other applications and to books on my bookshelf to collect information for the doc. Occasionally I was “away” long enough for my computer to go to sleep but it always woke again as soon as I moved my mouse.
After working in this way for about an hour, I saved and closed the document (without Quitting InDesign) but, a few minutes later, having located for more information, I double-clicked its icon in the Finder to re-open it. I was presented with a warning notice saying
The document “[filename].indd” could not be opened. InDesign cannot open files in the “InDesign® CS4 Document” format
This seemed so strange that I took a screensnap of it so that I could quote it exactly. I Quit from InDesign and Restarted my machine. That seemed to fix it but it left me wondering, was this an InDesign problem or a Mac OS problem?
I am using InDesign CS4 on a 24-inch iMac running Mac OS 10.6.7 with 2GB of SDRAM and plenty of spare HD space.
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