Print problems in a single application

I am running numerous programs including MS Office over a simple network, and all print succesfully to shared printers (HP 930C) in a classroom situation. One Educational windows based program will not print. I have tried: 1. Changing data format ie. EMF to RAW 2. Spooling directly to the printer 3. using HP universal driver 4. Selective startup to eliminate conflicting programes. I also get spool 32 errors or invalid data messages when printing. I Have the same program running in anothe classroom printing perfectly allbeit to different printers (HP 890c)can anybody help.