Upgraded to virtualbox-bin-4.1.2 from 4.0.10 and it stopped working. Trying to run it you get: The VirtualBox kernel modules do not match this version of VirtualBox. These packages are installed: app-emulation/virtualbox-bin-4.1.2 app-emulation/virtualbox-modules-4.1.2 Worked with the previous version but fails with the new version. Reproducible: Always
Correction, the previous version had been 4.0.12 not 4.0.10
Please make sure that you have a) compiled the modules for your currently running kernel (hint: /usr/src/linux symlink) b) unloaded the old virtualbox modules and loaded the new ones I just tried to reproduce your problem on my test machine with no success. Both virtualbox-4.1.2 and virtualbox-bin-4.1.2 had no version mismatch issues with virtualbox-modules-4.1.2