Ejabberd runs, but can't connect any clients

Hi guys,

So I have ejabberd running, I can even register accounts and hit the web interface, but every time I try to connect with a client, it instantly disconnects me. I see this in the error log (debug mode):

=INFO REPORT==== 2010-03-25 19:59:22 ===
D(<0.382.0>:ejabberd_receiver:320) : Received XML on stream = "<?xml version='1.0' ?>"

=ERROR REPORT==== 2010-03-25 19:59:22 ===
** Generic server <0.382.0> terminating
** Last message in was {tcp,#Port<0.3400>,<<"<?xml version='1.0' ?>">>}
** When Server state == {state,#Port<0.3400>,gen_tcp,none,<0.383.0>,65536,
{xml_stream_state,<0.383.0>,#Port<0.3413>,[],0,
65536},
infinity}
** Reason for termination ==
** {badarg,[{erlang,port_control,
[#Port<0.3413>,0,<<"<?xml version='1.0' ?>">>]},
{xml_stream,parse,2},
{ejabberd_receiver,process_data,2},
{ejabberd_receiver,handle_info,2},
{gen_server,handle_msg,5},
{proc_lib,init_p_do_apply,3}]}

Now searching, I found the advice here: http://www.ejabberd.im/erlang-port_control, but that doesn't seem to be the issue as the erlang version for compile/run is the same (R13B01), there is only one version "installed", nor do I have a duplicate child.

I should point out though, that erlang was "installed" by simply coping it over from the machine it was built on, replicating the path structure exactly. Interesting, when I try to run erl, on the build machine I would see
Erlang R13B01 (erts-5.7.2) [source] [smp:128:128] [rq:128] [async-threads:0] [kernel-poll:false]

Eshell V5.7.2 (abort with ^G)

though on my runtime machine, when I run erl, I only see:

Eshell V5.7.2 (abort with ^G)

So it's possible there's still something upset with the erlang on the run time system, which I'm trying to investigate. If you have any advice on why the system might be messing up I'd appreciate it, thanks!