I use urxvt in combination with zsh. However since my fresh install of ubuntu 10.04 I have the following problem. If I type backspace the cursor moves to the right (instead of deleting the characters on the left).

Suppose I typed n characters then pressing backspace n-times moves the cursor n- positions to the left, if I type backspace then one more, the cursor doesn't move anymore.

If I type the left arrow, nothing happens, if I type the right arrow afterwards a some character occurs.

mv .zshrc .zshrc.bak

mv .Xdefaults .Xdefaults.bak

didn't help.

urxvt + bash works fine as well as xterm + zsh.

zsh-version: 4.3.11-4ubuntu2.is.3ubuntu1
rxvt-unicode version: 9.09-3

Any idea how to fix this?