Tmux new named session exited

Tmux new named session exited

I can't start a new named tmux session.
Below shows what gets printed. Note the 0;95;c weird statement.
> tmux new test
[exited]
> 0;95;c
I can, however start a un-named session and rename it in tmux.
I used to be able to start with a named session. Have not been using it
for quite sometime, and I'm not sure what has been done to the system that
might have some implications.
How can I fix this?
How do I view the debug log or something?
Ubuntu10.04
Tmux 1.7