Thakns Peter, I had seen this thread, but it doesn't really address my issue. I've exported individual chapters from the book file, all with success, so I know there isn't a file corruption issue. The problem seems to do more with memory allocation/usage.
I have tried: quitting and then immediately exporting the file, and even rebooting and then relanuching and exporting. Both of these allow me to get a few pages farther along, but still not through the entire book.
I remember back in the day there used to be a setting for how much RAM/dis c space was allocated to a certain applicatino (I knowm it was a long time ago). I didn't know if there might be something like this hidden somewhere
I don't know a thing about virtual memeory allocation in OSX, but your description of being able to export in chunks but not as a whole certainly sounds like a resource problem. The usual workaround for this is to simply combine the parts in Acrobat Pro.
Things might improve if you free ups some space on the hard drive. How much do you have now?