Mldonkey too old? LowID?

[Dave M G]

Zach wrote:

>Your performance will suffer significantly with a low id ...you need to forward
>the ports that your client is configured to use.  Generally this is
>4662 TCP & 4672 UDP, 
>
I have only one computer, and it accesses the net via a router connected 
to a fibre optic modem. On my router, I have opened the ports 4662 TCP, 
4672 UDP, and 6346 TCP and UDP (for Gnutella networks).
I had done this since the beginning.

Yet I still see the "lowid" error.

Is there some kind of firewall or port blocking in Ubuntu/Linux that I 
need to open as well?

--
Dave M G