Problem

The Gateway Navigator GUI freezes when trying to load objects, and a "SmwQueuePut" message appears in the SUP*.out file

Check the IPC parameters of the system (how to do so differs by platform). The minimum mandatory values are:
MSGMAP 100
MSGMAX 16384
MSGMNB 32768
MSGMNI 100
MSGSSZ 8
MSGTQL 100
MSGSEG 16384