Can’t Get Past Login

Have installed WP on my site… (Hosted by CrystalTech) Installation appeared to complete normally… All database tables created (MySQL 5)… When I first attempted to login using password created during installation process, I could not (password invalid)… Created a new password hash and used SQLYog to edit wp-users table with new password hash… Now it appears that the password works, but I receive a 403 error when wp-admin page is executed… What am i missing?