jQuery & IE7 render bug with slideToggle()

I have worked quite a bit with jQuery and slidetoggle effects without coming across this bug before. The page开发者_如何学C is http://gilman.oomphdev.com, and the bug is when a user clicks the "What's This?" tag at the top of the page in IE7. Also, when one clicks the "Contribute Yours" link (right hand column, bottom-ish of white box) to open the comment form.

The slideToggle effect is pushing some content down, but not others, and the element being turned from display: none to display:block flickers and then disappears. There are elements with "float" inside the container being shown/hidden, but I use a clearfix to help give the container height.

I thought this was a z-index issue, so I found some jQuery that looped through the whole DOM and manually gave every DIV a z-index, but that did not help. I also played with position:relative on some elements but that didn't help either. I was using CSS3 PIE to render some CSS3 effects, but have since turned that off in order to narrow down the field of possible bugs.

So far, I'm stumped. Any insight would be appreciated. My main stylesheet is at:

/wp-content/themes/thinking/styles/screen.css

I also have a stylesheet in that directory for ie.css and reset.css