I apologise for the extensive crossposting:

The forum at biodieselnow.com is undergoing an much-needed upgrade to
an entirely new piece of software. This might take place on Veteran's
Day weekend (which is this weekend I think?).

There's an important step to take if you're already a member- they
aren't going to be able to carry over your old password for you to the
new forum, and therefore will need to be able to email you a new one.
They've been running a notice about it for a few weeks but I doubt every
member has logged in since then.

Here's a link to one of their notices about this:
http://forums.biodieselnow.com/topic.asp?TOPIC_ID=15920

If you are on that forum, please visit now and make sure your email
address is correct so that you receive your new password when the change
takes effect.