Hi Hilary,
no the error occurs irrespective of the machine the form is exported from.
there is another quirk which I just discovered. the form contains a rich text box control. if the data entered here overlaps onto the 2nd page, the entire control appears on the 2nd page and the form exports correctly as two pages. but if the data entered in the rich text box control is all contained on the first page anything that is on the 2nd page is cut off...