Chaps,
Thank you all for your support, in particular thosw who have gone to the trouble of generating PDF's for me through various inventive ways.
I think the issue IS related to memory management on the part of Xara and Xara Support now have a nice 20-page .xar file to do further investigation and hopefully come up with a solution in the form of an upgrade. (XXP3.24 as well as XXP4?)
For the moment, one of my many attempts generated a correct PDF (83MB, so forgive me if I spare you the result) and I will be coming back with you once I've uncovered anything sensible about the right and wrong settings.
Stephan
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