When I open Disk Utility, and click on one of the drives, the information (right)pane is black. Any ideas?
Well, I found out its a bug See Here
Even in the bug description it suggests a solution, changing the widget style to .... but that did not work for me. What I have done is change the widget to Ambiance, and that fixed it, although it changed the look. Hopefully this bug will be fixed soon.