Odd behaviour from bash after recent cvsup and world...

I just cvsuped and did a full world make/install/mergemaster around 2
hours ago. The system comes up fine, and everything seems to work fine so
far, except for bash (which is my default shell). I can not see the
characters i am typing when in bash, hitting enter redisplays the prompt
on the same line. Ctrl-L will not clear the screen, untill i hit enter
afterwards. Commands do work, but the screen handling aspect of it is
wacky, almost like a terminal emulation problem (im using vt100 via
SecureCRT). Csh and sh work fine. I have tried reinstalling from ports,
thinking that it was a problem of the recent library changes, but same
thing. I also have /etc/libmap.conf defined as stated in UPDATING. Same
problem with it undefined too.

Thanks.