I have had this for a very long time, and haven't noticed any problem. In the process of working with Scale List Edit, CAD2008 won't let me. A similar message comes up and I am locked out. Anyone have any ideas what I am facing?
Ensure the user installing/uninstalling and using the product have enough rights to do so (install and reinstall as local administrator): Unable to run AutoCAD® as a restricted user http://usa.autodesk.com/getdoc/id=TS1055299