Is your field named "Description"? I was just assuming it was. Remember that field names are case-sensitive, so that "Description" does not equal "description" or "DESCRIPTION."
I would put it on two different lines, just to make things easier to read.
Can I take a look at your database? I'd need to be able to have "add" permission. (I'll delete anything I add.) If you'd rather not post the URL to your database here, you can send it to me at deni@jpdeni.com and I'll take a look at it.