My existing layout used a right sidebar on everything but single-post pages; got no sidebars now, and I've tried turning on several different sidebars but they still won't display- a forum search doesn't turn up any known issues. Url is http://landalerts.com
To upgrade ATA, I went through my existing ATA install and changed any Theme Options that called for a background image in the atahualpa/images folder to a top-level directory (mainly for future housekeeping), verified the site looked correct and switched to 3.4.1 - looks like everything updated perfectly, except I have no sidebars.
The only change I've made is to start on a customized header, which for now is simple (code below) but may later be flash or HTML - this is in the ATA configure header panel, but when I delete the DIV and have only %bar2 etc, I still have no sidebars - that doesn't seem to be the issue.
Code:
<div style="height: 400px;"><img src="http://landalerts.com/content/hdr.jpg" width="900" height="400"/></div>%bar2 %pages %bar1