I have 4 80x86 computers running RedHat 6.0. On all of them,
when I exit xwindows, I get a new core dump. I have not
noticed any other symptoms. Please let me know if I can give
you any more information on this.
This is a known problem that has been fixed with updates available
from our ftp servers or one of their mirrors. I would recommend
for a list of the packages which need to be upgraded. Note this will
also fix a handful of other bugs with GNOME.