I believe this is fixed in mainline (I haven't yet verified but I recognize the bug), and/or with a more recent wxWindows build. It needs backporting.
-- [apport] xaralx crashed with SIGSEGV in wxWindow::OnInternalIdle() https://launchpad.net/bugs/90092 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs