One of the pages in our site doesn't work, and I can't edit it either, so how can I forcefully remove it so it at least doesn't appear in the navigation?

The problem is that I cannot edit in the Admin section. I login as admin, browse to Admin->Pages and in the list of pages I try to click on the edit button in that list, but I get an error. This means I can't delete it either, because the delete button is within the edit page.

1. Is there a way to delete all record of it in the database and/or file-structure??
2. Where do pages actually get stored?

Problem fixed.

I already tried this (deleting the record from tabs) a few days ago before I posted here, and I didn't think it worked. But now that I look back at the site again I realise the buggy page is gone.. must have been a cache issue or something, I don't know - I tested it on two different computers before posting :s