Hi! This happened last year. Poser crashes and on restart crashes as soon as the default scene loads. Previously I re-installed. But when the same thing happened a few months later-I was told I** had exceeded the # of installs. **I think it's the same issue- some one on the SmithMicro tech forum directed me to replace the prefs file and cache file. I was able to get it working again-and saved a copy of the folder with the registration and cache files. The NEXT time it happened-I just deleted the files and replaced them with a saved copy. I still have the copy with the files as shown in the attachment. But can't find WHERE to put them. Are they hidden on MacOS? I thought they were in App Support in the OS folders. Are they hidden files? HELP!