That's why I pulled the plug, it was making my pages jump on load which was annoying, although I managed to get it working quite well it was more of a disruption.
This is a relatively easy fix. The pages jump because of ad banners loading at the end, after users start interacting with the content. Previously you didn't have this problem because your server was ensuring the ad banners loaded before the site was usable.
The ad banners are making the page jump, because their container is not set to a static size - so before the ad banner loads, that container may be 0px high, but after it loads it is probably 128px high.
Simply set the container for your ad banner to a static size, which will keep the page from jumping, as it no longer matters if the banner is loaded or not - the size is static.
You probably don't want to go back and mess with it again, which I understand. But I figured I'd post this since more than one user reported having the problem, and it really is a simple fix... Plus, I like focusing on the user experience, and the sooner users can use your page the better. I hate the idea of making people wait for ads to load before they can actually use the site.