StrayedFairway:
I don't know anything about cthruview, but it appears that you have "desktop themes" turned off do you still get when you turn it back on, as some transparency objects do not work as expected when it's off?
tried it to make sure, but no difference.
I have 2 hard disks both with win 7 (just experimenting - trying to get a better meter )and both with the same desktop set up. cthruview works fine on my original disk, but not the 2nd disk