Can you check to see if this is a duplicate of bug #416251? That bug seems similar to this.
-- unable to see thumbnail previews of mostly videos https://bugs.launchpad.net/bugs/433965 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to nautilus in ubuntu. -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
