Can't send email
The send button is greyed out in all new messages in Mail. In Mail Preferences there are no icons across the top. All that comes up is General Preferences so I have no way of seeing Accounts information.
iMac, Mac OS X (10.6.2)
have you upgraded to os 10.6.8 ? or updated your personal information to reflect that you are using 10.6.8? Have you tried running permissons repair in disk utility?