Christian had right. I changed HDETUD1 to HDETUDXA in BITEARN NODES,
but not in PEERS NAMES. I changed also PEERS NAMES.
Listserv start up now, but runs not correct. Listserv did not read
mail from list readers. All mail had sent to a list stay in reader.
There are problems with 1.5o under VM/XA.
Ary.