I know, it's not a descriptive topic name, but I'm so tired of dealing with Internet Explorer's quirks.

If you are a css guru, please help! I have no idea what's causing this. You can see the problem in IE7 at the following address:
http://tuatara.syeke.com/install/

I have disabled the ability to go any further in the install because the first page demonstrates what all the pages are doing, but the css and html are alll there to check out.

It works fine in FireFox, as usual, but in Exploder as soon as you hover over the form (the form, fieldset, dl, dt, dd not sure which one is directly causing this) the margins shoot left about 1-2ems. This is ridiculous. Help?
-m