According to our plans  to migrate to the IBM 3090,  we will be upgrading
from VM/SP 3  to VM/HPO 5, then  switching to VM/XA whenever  we have the
hardware necessary for it. We are expected to stay at VM/HPO for a couple
of months.
 
I have heard some horror stories  about VM/HPO 5 and LISTSERV, what would
you suggest that I should watch out for?
 
Thanks in advance,     -turgut