OUCH. That was a bone-head error on my part. In my last purge, I selected over 4,096 rsr files in the Libary folders. I was able to recover maybe 2,000-3,000 before my computer decided to reboot itself. Some of those folders already had converted png's, and others I'm sure did not. I have to run to work now. When I return, I can do a nice hunt to see which things need to be reinstalled. Oh, the joys of being stupid! Thanks for the tip. Now I know what NOT to do, grin!