Backported changeset 20405.

That change is available in ticket 6471

Should fix focus issue seen in Ubuntu Jaunty.

Also change the way redraws ; hoping to fix an issue seldom seen after using the EPG, when the main menu is being redrawn

http://www.avenard.org/files/media/vdpau/mythtv-fixes-glvdpau20405.patch.gz