I just downloaded the file from Renderosity, installed it in a new runtime and it still freezes up the moment I try to do anything with the M2K.  I've gone into other project files that I have worked on and changed up until yesterday and all objects, cameras and lights work fine, but if i touch the M2K, I get the spinning orb.  I let it rotate for about a half an hour, then clicked on the screen - white death. 

I loaded in the Mosquito by itself.  It works perfectly.  Loaded other airplanes and space vehicles.  Everything works fine.  So the problem is with the M2k file and I don't know why as it worked great until today.  It looks like something within Poser pro 2012 has been corrupted and this file will simply not work anymore.  I suppose I'll have to reinstall Poser Pro 2012 once again and see if that fixes the problem.  I never had issues like this with my old Poser 7.  I must say, the additional features in PP2012 don't seem worth the constant struggle to get work done.  It's ending up costing me both money and clients due to this unpredictable behavior.