I have a 2x2 ad box. It worked great with 4 ads rotating in the 4 spots but now I need one of the slots to rotate between 3 different ads as well. So I have 6 ads for the 4 spaces and want three to be there all the time and three to rotate. Instead, I'm getting random ads showing up PLUS the blank ADVERTISE HERE spots showing up (which I DON"T want). Any help?