CSC Portable
Windows XP SP3
McAfee (corporate just updated from Norton. Same problem).
Laptop running 2 GB Ram
Still have one MAJOR issue with CSC and I have not been able to over ride it. It deletes all of AutoDESKs default settings. Of particular issue is the fact that the “ribbon” and all associated settings disappear. I have tested with AutoCAD MEP 2009 and 2010.