My Vegas 6.0d has a strange narrow horizontal black bar at the bottom of the timeline where the slidebar should be. This unwanted black bar is covering the + and - buttons in the right corner of the timeline that shrink the clip into a smaller size.

Anyone know how to get rid of this black bar?

Here's a couple of options:

1. In the preferences, turn off "Themes" support.

2. In Windows, reset your theme back to the Windows default theme.