"bind: Address already in use" on Apache 1.3.29

[Mark]

Hello,

I upgraded my Apache server to 1.3.29, on FreeBSD 4.9R-p3. Now, all of
sudden, it will not bind anymore, for no apparent reason:

[Fri Mar 12 21:12:12 2004] [notice] Apache/1.3.29 (Unix) mod_perl/1.28
PHP/4.3.4 mod_ssl/2.8.16 OpenSSL/0.9.7c configured -- resuming normal
operations
[Fri Mar 12 21:12:12 2004] [notice] Accept mutex: flock (Default: flock)
bind: Address already in use

No address is in use, I can assure you. This is quite absurd; I use the same
config as the .28 version. The daemon will not prefork, either.

Anyone has similar experience? Or an idea to solve it?

Thanks,

- Mark