.7x stops sending packets, buffers fill

Here's something that started with .70 and has carried on to .73. After gnotella's been running awhile, it quits sending packets to the active connections. The packets all go into the buffer instead of actually being sent out, and eventually the connections get dropped.

When new hosts are added from the host catcher, the connection is opened, but Sent/Rcv/Drop all remain at 0, and the packets start to pile up in the buffer. One by one, all the hosts in the host catcher are dropped, and eventually the client's left sitting there idle.

Quitting and restarting the client gives a "port already in use" error, so I end up having to quit/restart/change port fairly often.

Shaun