I get this error as well - but under different circumstances. (using 1,2,3)
I tried using the Document Properties 1/Stamp option.
when this field is clear no problems - when this field has a value then it is a bit hit and miss. I tried 3 documents - 2 work, one doesn't. Always the same one.
and never fails when this option is clear.
Consulted the GS forum it says that GS might need a path to the gs_init file, but I cant see that one exists.
I have found that when it occurs I can 'exit program' in the error message.
The job seems to stay in the spooler, so when I open PDFCreator directly it automatically re-starts the job and then occasionally in this 2nd attempt I am seeing'401 Can't show non-modal form when modal form is displayed'. selecting 'next command' allows the job to complete and the pdf produced contains no errors
I have found that when it occurs I can 'exit program' in the error message.
The job seems to stay in the spooler, so when I open PDFCreator directly it automatically re-starts the job and then occasionally in this 2nd attempt I am seeing'401 Can't show non-modal form when modal form is displayed'. selecting 'next command' allows the job to complete and the pdf produced contains no errors