When i open any drawing in C3D 2009, it gets hung up on (reading the command line) "Project Default Format for Save Set to AutoCAD 2000". It seems to pause there taking a long time to move to the next thing. After it gets through that, it has an issue with loading the cui files. It loads all of them, then unloads "Project" file, the reloads "Project" file. I cant figure out why its unloading it. Anyone have similar problems?