does it actually crash, or just display that message and keep going?
FYI: that message indicates that fitzquake attempted to repair the linked list rather than hanging right then as previous engines do, but doesn't guarantee that the list is actually repaired and it might crash or hang later in the list anyway. The problem is caused by questionable QC practices. For more discussion, see the i3d thread here:
http://forums.inside3d.com/viewtopic.php?t=1431