The following error message can appear upon start up of ModelVision Pro version 8.0 or earlier.
If this message appears:

•  go to File>Print Setup and set the default printer to a PDF printer source;
•  install ModelVision version 9.0 and the error message will no longer appear

 
"ERROR: MSG 0x0073c35f [CAT 7/3 STD 50015]
Category: Underlying system generated error [Toolkit error]
Function: xvt_print_create xvt_app_create
File: wprnt.c line: 763"