I've been having a heck of a time trying to get the categories, posts, comments, etc. to display at all in the side column. Even the use of the default function:
<?php wp_list_categories('show_count=1&title_li=<h2>Categories</h2>'); ?>
Won't return any categories. All of my posts have categories (only 4 of them at the parent level), they have tags, and none of this information is showing up in the right column.
I'm confused as to what changed from 2.8.2 and auto-upgrading to 2.8.3 that would wipe out my capacity to view categories and other information.