Dim: What the hell?

I have a post to make today, but even after I take ALL the formatting and HTML out of it, it causes all the posts to shift down on the page, so that the most recent post begins below the last entry in the sidebar. Ack! I'm not willing to make people scroll that far, because it's both a pain AND unprofessional. Can anyone tell me what's going on? When I un-publish the post, everything aligns perfectly. But no matter what I do to it, publishing it again forces everything to the bottom. Are there any HTML-literate folks out there who can tell me how to fix this, or what's causing it, or something? Thanks, Dim UPDATE: Nevermind, I fixed it. Apparently, when you string lots of words together with /'s and don't have any spaces between them, such that they take up more than one line, things get funky.