QView is sometimes unable to confirm that a reference points to a queue. Although
some checks are made using the extended library before moving on to treat it as a
queue there is still a chance that using this feature with other types of reference will
blow your program away (depends what's living at that address in memory!). So a
warning is given the first time you use this feature in a debugging session:
The warning can also be permanently turned-off using the "Don't show this again"