rxvt - corrupted window refresing

[kwant]

rxvt sometimes produce corrupted output. It happens during or after scrolling. I observe mess inside window: lines are not rendered correctly or in correct place. After changing size of window everything is ok until something new appears in the window.

See exemplary screenshots: http://kwant.info.pl/pics/zrzut_ekranu-13.png http://kwant.info.pl/pics/zrzut_ekranu-16.png http://kwant.info.pl/pics/zrzut_ekranu-20.png http://kwant.info.pl/pics/zrzut_ekranu-21.png

It happens only with my custom rxvt settings (nothing strange happen under standard settings):

/usr/bin/rxvt +sb -fg green2 -bg black -sl 4096 -fn -misc-fixed-bold-r-normal--13-120-75-75-c-80-iso8859-2 -fb -misc-fixed-bold-r-normal--13-120-75-75-c-80-iso8859-2

I'm not sure, however this situation starts with Ubuntu 8.10 or after upgrading nvidia driver to the 180.xx version. Before Ubuntu 8.10 everything was ok (since Ubuntu 7.04 I'm using gnome or KDE4 with compiz). This strange behaviour has been observed only on Ubuntu, under distro gentoo with similar settings rxvt works perfectly ok.

Kwant!