Unresolvable chain of dependencies

[Mark Knecht]

Hi,
   For the last week or so I've had a blinking red exclamation mark on
our three machines here. When I try to run the Redhat Updater it
eventually comes back and says:

There was a package dependency problem. Message was:

Unresolvable chain of dependencies:
mozilla-1.7.6-1.2.2  requires desktop-file-utils >= 0.9

Please modify your package selections and try again.

This seems to happen whether I choose to update Mozilla or not.

1) Is anyone else seeing this?

2) How to fix?

Thanks,
Mark