If caps lock really stops working then this is a kernel bug not a rhythmbox bug. It should be impossible for userspace to cause complete kernel lockups...
Could you also attach the output of lspci ? ** Also affects: linux-source-2.6.15 (Ubuntu) Severity: Normal Priority: (none set) Status: Unconfirmed -- Trying to access unmounted SMBFS share in Rhythmbox causes entire system crash https://launchpad.net/malone/bugs/39958 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs