DTHUREGRIE "Philly, there's no need to use bum files in ProPack. PP uses jpg bump maps and bum files will give you very weird results." That's the rumor, but I had problems with ProPack where it would not recognise the "JPEG Bum's", and could not convert the JPEGS to BUM's "because it it didn't need to" It was a catch 22. Why it didn't recognise the JPEG BUm's is beyond me. I'm not the only one with this problem, check around. In any case, the PPP & P4only solved the problem.