Wine from the Ubuntu PPA should be compiled with gcc 4.5 (since 1.3.34). I pointed out the gcc 4.6 bug to Scott Ritchie (the maintainer of Wine Ubuntu PPA) and he reuploaded that version (1.3.34). He also repackaged the 1.3.28 that version was shipped in Oneiric (it's in oneiric-proposed). There is also the bug page for it on launchpad: Steam overlay does not work due to GCC-4.6 issues (https://bugs.launchpad.net/ubuntu/+source/wine1.3/+bug/900901) Steam can be installed with winetricks in other prefixes. You have to type that command: Code: winetricks --no-isolate steam