When I use tables in my posts, they show up crippled when used in an excerpt.

My settings for ATO -> Excerpts are:
- Show exerpts on home page
- Show first post as full

When I add a post with a table, it shows correct. If I add another post, my previous one (the second on the page) shows crippled. When I change the setting to show all posts as full everything is ok.
I tried to solve this by adding "<table>" to "Don't strip these tags" but to no avail.

Is this a (known) bug?

Atahualpa 3.5.3, imported settings from "ata-round.txt"
WordPress 3.0.1
Browser: IE6 / FF / Chrome

1) Wordpress (and Atahualpa) strips all HTML from an excerpt, by default.

2) Atahualpa allows you to specify what HTML you want to leave in.

3) A table can be made up of <table>, <tr>, <td>, <th>, <thead> and <tbody>

get my drift??