Sharen, I export from Poser 4 on a Macintosh and havent seen the problem youve encountered. I dont run ProPack, so I suspect it may be some conflict between Poser, the ProPack, and your system software. That doesnt necessarily mean Windows; it could mean a conflict with another piece of completely unrelated software thats forbidding you to do some Poser command. I realize it sounds unlikely but Ive seen it happen on both Macs and PCs.