It worked fine until I put in an extension. After, when i would export a dialogue says you must group before exporting which never happened before. I imported the file, object name was under the scene but no object. If I create a new scene and import an object which was made prior to the ext. being placed in Carrara the object name shows under scene but it duplicates the last object that was made. I deleted the ext. from Carrara, no go. I then unistalled Carrara and deleted the Carrara folder and then reinstalled the program, no go, still same problem. Also I notice something which was never there after insatlling the ext., that the Group is always highlighted. I also did a virus scan which came up empty. I think that part of the ext. is still somewhere on the hard drive which is screwing up Carrara. Any suggestions as how to slove this problem? Thanks, Dave