Error using Adsense Multi Palette

The idea is tempting. To combat ad blindness, we rotate the color of the ad banner. Google Adsense allows this throught the use of the multiple palette option.

I enabled this by choosing up to four color palettes and then embedding the new code into one of my sites. The problem is, where the google ads is supposed to be, i now only see a sea of black!

Has anyone encountered this before? Help!