Can confirm this. as of updates today 27/03/07 desktop continually flashes unless compiz killed (spawing multiple instances of itself) or compiz-extra removed.
-- [apport] compiz.real crashed with SIGSEGV with compiz-extra installed https://launchpad.net/bugs/96942 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs