I think I mentioned that I've internal user's that will test the *^(*&^ out of our forum before it goes live. We found another issue like the Buddy List blank page issue.
If you try to add a signature without content (don't ask why they added a signatue with no content. Some of the people testing this live for these kinds of errors) AND preview Then try to add, you get a blank page.
This only occurs on our forum. I tried it here and was able to add a signature without content fine.
Thanks in Advance! Board URL