Wordpress & Textile

Prior to hosting with Dreamhost I ran my blog as Textpattern, and doing so I have a lot of posts using Textile, Wordpress has a few plugins that allot for this type of text processing. Just two days ago my Wordpress started acting very funny, and created a CORE file in the root of my domain.

My question is, what happened over the past couple of days that broke this, I tried several plugins after that and still the same result. Server pukes all over it.

Anybody else have a similar issue?