Help: Oracle Web listener/Solaris error

I'm receiving an error when I attempt to start up Oracle Web Listener 2. The error is:

Error: DNS process exited with unexpected error. Error: The server could not initialize
Information: The server is exiting

The last two lines are normal if the server cannot start. The first line is the critical one. The operating system is Solaris 2.5.1. All other DNS services work (I can telnet into/out of the box, ftp in/out, nameserver lookup, ping, etc.) The only change I made before things quit working was to change the password for the WWW_DBA user (the user under whose privileges a HTTP client accesses maintenance functions). Oracle (7.3.2) runs and functions correctly.

Oracle tech support has no clue what the problem is. There are no entries in any of the log/error files (and it doesn't matter how many times they ask, the errors still aren't there).

Has anybody encountered this problem? Any ideas what it might be?

Any help appreciated. Thanks.

-- 
Colin Young
cyoung_at_ceogroup.com
cayoung_at_cycor.ca