Wonga -

Ouch! I've had the same experience, and have adopted a policy of saving one (or two) earlier versions of each *.CAR file. Nothing gets deleted until the next file loads successfully. Its a version of the wingwalkers motto, "Never let go of anything until you've got hold of something else." Of course, I still get carried away and do WAY too many modifications to a file before I save it ... and then of course it won't load. I think my most recent failure to load was a particular Poser format object that I loaded, then modified the textures heavily, but I'm not sure.