readline: warning turning off output flushing
The solution may be the following: it is necessary to check the rights on pseudo terminal pseudo-device:
marco@IbmSolaris:~$ ls -lL /dev/ptmx
If the output you get is not the same like this
crw-rw-rw- 1 root sys 11, 8 2010-01-26 15:31 /dev/ptmx
you should be able to use xterm to change them. See
man ptyfor more.