In ical-2.2-4 /etc/X11/wmconfig/ical is not a %config file.
It should be.
This has been fixed for the next release of Red Hat Linux, but it is
not significant enough to merit a RPM update for 5.x.
This problem still exists in ical-2.2-9 in RedHat 6.0
Fixed in dist-6.1 ical-2.2-10. Apologies for the oversight.