Erm, 

thank you all for this intelligent discussion. ;)

Maybe I am slow. But in all of this goldmine of information I missed the
part where Evolution's problem is discussed.

Anyway. The problem seems to be with installing non-Red Hat packages of
Mozilla (specifically mozilla-nspr) which fux0rs with RedHat's bonobo
and oaf. I installed Mozilla 1.0 and boom Evo is cranky. I remove the
new Mozilla and go back to 0.9.9 and boom. Evo works again.

Samir M. Nassar
RedConcepts.NET - http://redconcepts.net