I set up our BES about 2 months ago (with a little help from my friends) and thought we were doing OK. I have 10 users that are working under the default policies. Problem just surfaced with my BB (an 8830) that I cannot send or reply to emails. After checking the threads I thought we would be able to find the problem...not.

I removed myself from the admin account, removed myself as a user from BES, wiped handheld, pulled battery and said a few choice words, but I'm still not able to reply or send emails. Any help would be appreciated before I call RIM.

What happens when you try to send a message? Does it give a red X. If so, open the message and list what it shows next to Status.

Off topic - Nice to see a local BES admin around. Lancaster's my old stomping grounds

See here:
KB04707 - Unable to send email messages because Send As permission has been revoked - Port3101.org : Your BES Connection

and here:
AdminSDHolder - or where did my permissions go? - Port3101.org : Your BES Connection

Yes I get the red X. Message Status: Desktop email program unable to submit message.

See the two KB articles I linked to above.
I can almost guarantee that your issue and resolution is contained within.

Thanks for the help. i'll check them out