Have uninstalled 1.5 and reinstalled 1.6, .Net Framework 1.1, removed quotes from John's ini file, played around with autodosbox, nodosbox, dosbox etc etc, still getting an error. Opens fine from project 64 and plays no problem, you were right 1.6 runs heaps smoother, so i'll just do that for now as my patience has gone missing, I'll watch the forums for a while and see if anyone manages to fix the problem and go from there, thanks guys for your help.