Well I knew this would eventually happen. My VM 1.8a version of LISTSERV won't come up under VM/ESA 2.1.0 (CMS 12). CMS 12 runs in 370-XA only. I'm getting Op exceptions in RXLSVPRF. I tried setting 370 accomodation but no luck. Unfortunately, my upgrade to the currnet VM/TCP release is hung up in puchasing and I have a swarm of instructors setting up LIST's for fall distnance learning classes. If I can't get this working, I'm going to have to drop back to VM/ESA 1.2.2 until I get purchase approval (or rejection). Is anyone running 1.8a on VM/ESA Version 2? Thanks for any suggestions, Ron Greve SD State University