Unfortunately, SCO can only deal with hostnames no longer than eight
characters. If your hostname is longer, or fully qualified, you may
need to specify your hostname on the NODename line in
/usr/adsm/dsm.sys.
If you use the DISPLAY variable, you will have to supply the fully
qualified host name (i.e. DISPLAY=host.full.do.main:0 instead of
DISPLAY=host:0).