I have the same bug. Brand new Vostro, brand new Natty 64-bit installation.
It appears most often when the screensaver activates *with* flash playing in Firefox, but it has happened at other times. When it locks up, Flash will continue to play (if I'm on, say, Pandora or some other streaming service). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/762918 Title: Natty Screensaver freezes system after some period of inactivity -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs