If I remember correctly, when I saw this problem originally I put it on my desktop machine and it did the same thing. I will install back on there tomorrow and let you know.You can disable mouse over highlight by right click anywhere in the tree view, unselect 'Tree options -> Pre-selection'. Maybe there is something wrong with transparent rendering on your machine.
Thanks a bunch.
I'm hoping this is big upgrade to my cabinet design, framed out of angle iron.