11.1 /64 HDMI overscan & mouse freeze

I have it installed plus daily updates. Unit is XFX 750a SLI, 2 GB 10666 DDR2, video off of motherboard, using HDMI connected to my Samsung 40" LCD TV. I am connected to the Nvidia downloads and that sees the correct video chip. Fonts are messed up (some overly large and some very small) and about half the tool bar space is missing all around edge of TV. I am running Logitech Wave wireless but the mouse locks up ocassionally, not the keyboard (strange). During boot up I see part of a message on sound driver reverting but cannot read all of the message. When going into Failsafe mode screen and fonts are fine. Updates seem to be running fine.
Any advice on video set up would be appreciated. I can work