A little more investigation and a variety of things aren't working in the admin. It seems like anytime it tries to interact with mySQL I get the "document contained no data" message. I also get "child pid xxx exit signal Segmentation fault" in the error_log.
Additional... I also have php4 installed and just came across some info that suggests that this combo may not play well together (apache, mod_perl, php and mysql). Can anyone corroborate this, or know of a fix?