The Pro Pack reads object groups differently than P4 does, that's why you are not seeing the problem on your version. Poser 4 just skips over unlabled 'g' lines where the Pro Pack reads this as a seperate group...and since that group is not refered to in the CR2, it doesn't load that geometry when the character is loaded. It's probably a good idea to stay away from using the grouping tool on figures that you plan to sell, because of this and because of the copyright issues that arrise when the grouping tool embeds some of the character's original geometry into the CR2 itself.