2nd and 3rd Adsense boxes don't appear anymore

It works on one site but not the other

[wazopia]

The 2nd and 3rd Adsense boxes don't appear anymore on my site.

Is anyone else having this problem? It started about two weeks ago. One site since July works fine with three ad boxes. The other site won't show the second and third boxes. I switched out all the code but no change.

Any ideas would be greatly appreciated.

Thanks.

wazopia2

[birdstuff]

Are you using the collapsable ad script? If so, there are probably just enough ads to fill one ad unit. I see that all over my sites.

[wazopia]

No, I am using the normal script. There are plenty of ads, always has been. The box itself doesn't even appear.

[butterfingers]

I'm having the same problem... but not with all pages.

Some pages shown in a correct manners.