Shadownet (getting off topic here....), I've had similar problem, but got 2 ways around it.... 1) I now always start a new scene from scratch (ie. load the original V3 figure, mats, etc). I think working from previous pz3 files gradually corrupts things. 2) If P5 hangs (for me usually when I save a large file), just Ctl-Alt-Del and select the Task Manager. When the TM pops up on the screen, P5 mysteriously comes back to life for me!