Thanks, muttbarker; you are right, as always as well. I agree it is not worth mentioning for new acquisitions (thank you for calling that out); my only purpose was to clarify for others who come across that thread later and have one of the x500 systems or if the original poster had some in the lab that he was using. Let's try to sum this up for continuity (if you don't mind): IVS: supported on x000 systems IVS: supported on x500 systems IVS: NOT supported on MAG/x600 systems x000 systems: EOL; can only run up to 7.1 x500 systems: EOL at the end of 2013; run 6.1+ MAG/x600 systems: current with no EOL announced yet; run 7.1+ ... View more