ssh slowdowns under X

[Jack Tanner]

I'm experiencing unusually (as in, didn't happen before) slow ssh 
connections when running in an xterm. Just interacting with a remote 
bash (local xterm binary) makes characters show up with a delay. There's 
no delay if I'm not connected via ssh (i.e., local xterm, and typing 
into local shell), and there's no delay if I'm not in an xterm (i.e., 
local rxvt and typing into ssh-connected remote shell).

Just updated all local packages, remote boxes used for testing are 
completely updated Fedora Core 1 and Fedora Core 2.