* Page Text Inexplicably Cut Short

When I edit a page and click Update Page, only the first 100 words or so of my post are retained, and everything else is DELETED from my post.

If I add one or two words every save, I can stretch it up to about 180, but that’s about it. After saving, I look in the source code, both in the Visual tab and in the Web browser in the finished page, and there’s no comment or unfinished <div> or anything else preventing the rest of the text from being shown — it’s simply not in the code anywhere, as if I’d never typed it at all.

Can someone please tell me what’s going on?

Thanks a lot for any help! I’m on a tight deadline and I really need to get this site launched. Thanks again!