QUOTE (ggrussell @ Oct 4 2009, 11:55 PM)

What video card? There have been some issues like this being reported when MyDVD is set for 'software' render. Something seems to be broken and has been reported. Go to the menu TOOLS/ Options. Run the graphics test and see where the 'dot' remains afterwards. This tests how the video card handles certain DirectX 3D commands.
I do not get the same problem the OP has in the Mementos menu style but do notice a difference between the Hardware and Software mode: in Hardware the highlighted title also has a "right" arrow at the left of the item while in Software mode that arrow is missing.