My dock has this dark shadowy bar that stretches across the length of the screen. When I click on a flyout menu docklet, the bar shrinks to just cover the size of the dock. Has any one else seen this and how can I get rid of it?

I'm using ObjectDock Plus on Windows 7 Ultimate, 64-bit. I have two docks active and they each have this problem. The issue persists whether the dock is set to autohide or not. I've tried various dock styles to no avail. I have also adjusted the transparancy but all that does is make the dock graphic disappear -- not the shadowy bar.

Here are photos of the problem:

http://www.flickr.com/photos/dmmagic/7323810276/

http://www.flickr.com/photos/dmmagic/7323810148

Help!