I use urxvt as my default terminal and zsh as default shell. I use this two tools everywhere, but after today upgrade from ubuntu 12.10 to Ubuntu 13.04 I got some lags in term.
Lags means - when I type command, term doesn't show last character, up/down through history, prompt doesn't updates with right command (can leave the same or jump few commands back)
This is only with zsh, not in bash.
How to fix this?