Facebook publishing error

And now a completely mundane post/question. I have my blog synced with my Facebook account, so blog posts get imported as Notes on Facebook. However, new versions of posts don't get updated - basically, if I post once, then edit and re-post, Facebook still shows the old version. I usually hit post without any sort of editing (as I did with my last post) and sometimes add information later, so this error is sort of annoying. Anyone know how to fix it (or if I'm doing something wrong)?