Screensaver, Brightness and Lock --- settings ignored?

[jpvrlaone]

Intel(R) Core(TM) i5 CPU 650 @ 3.20GHz
Ubuntu 2.6.38-8.42-generic 2.6.38.2

I upgraded to 12.04 it seems that I have no control over screen timeouts (which are blank). Also, on occasion and overnight the system seems to lock with a frozen desktop requiring a reboot. I have turned off everything I could think of (See below) and the problems presist. I have to continually move my mouse or strike a key to resume a video (MLBTV for example). Am I missing something elementary since I find this most annoying.

Screensaver Preferences (XScreensaver 5.15, ...)
  Mode: Disable Screen Saver
  Power management box is not checked.
  Quick Power-off in Blank Only Mode is not checked.

SYSTEM SETTINGS
  Brightness and Lock
    Turn scrren off when inactive for "Never"
    Lock OFF
    Power Management not checked.

  Power
     Suspend when inactive for "Don't Suspend".

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/993393/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[jpvrlaone (jpv4433)]

or xscreensaver package