AdRotate 2.2 for WordPress Upgrade Problem

I recently upgraded my AdRotate plugin from 2.1 to 2.2. After upgrade, I found that the ads were not showing  up any more. I thought there might be some conflicts between plugins. I tried to de-activate and re-activate the plugin, but it didn’t help.

Checking the author’s web site and I found that the way to embed it in the php files has changed. The old way of embedding it is:

<?php adrotate_banner('1'); ?>

This does not work anymore in 2.2. You have to code it this way.

<?php echo adrotate_banner('1'); ?>