Tan bar across top of search results (pic included)

When I search using Firefox 2.0.0.1, I get this weird tan bar across the top of the search results. It doesn't happen all the time and I don't know how to replicate the problem. Here's the screen capture:

http://i45.photobucket.com/albums/f98/travor0184/google_search.gif

I'm running WinXP SP2. Can anyone tell me what's going on with this? Thanks.

Hello.

As no-one appears to recognize that bar, I'd suggest asking at Firefox: http://www.mozilla.com/en-US/support/