In a recent kernel update (Ubuntu Hardy, in particular, is affected), recent security fixes have been implemented which break wine. For a workaround, see: http://wiki.winehq.org/PreloaderPageZeroProblem For more information, see: http://bugs.winehq.org/show_bug.cgi?id=12516 https://bugs.launchpad.net/ubuntu/+source/wine/+bug/114025 http://kerneltrap.org/Linux/2.4.36_Stable_Release http://kerneltrap.org/Linux/Patching_CVE-2008-0600_Local_Root_Exploit