Smart assembly/Creo 10 stops working with a xtop.exe (not reponding)

I am trying to run a program out of smart assembly and it gets about 260 lines into it and just freezes. It looks like the xtop.exe has stopped working. Even leaving the file alone to run for a bit it never comes back and i have to “Kill” the program and open back everything up to model again. It doesn’t get me an error code to follow up with. This program has been working just fine up until the last 2-3 weeks. I have run other drawing type programs out of the same model assembly and they work just fine. I am Running Creo 10.0 with Smart Assembly 10. Could this be an update that would be messing with this? Also i have tried to create this in both Windchill and from my “C” drive and i get the same issue. I have had other people try to create and they have the same issue as well.