WordPress MU

I installed the Mu and it strted fine this time! I set it to use subdomains like example.domain.com, it creates the blog in domain.com/example but gives the address example.domain.com to the user to login! and the problem is that none of them working! you can not log in to the blog you have just created succesfully!!

error message:

Fatal Error
Could Not Find Blog!
Searched for mu.birolmali.com/ in baybak_mu::mu1_blogs table. Is that right?
Please check that your database contains the following tables:
mu1_blogs
mu1_users
mu1_usermeta
mu1_site
mu1_sitemeta
mu1_sitecategories
If you suspect a problem please report it to support forums!

is your wpmu site baybak.com? if so, you need to set up wildcard vhost at apache and bind update at dns zone file.
wpmu currently more on subdomain support. until you get the same response ip while you ping your site from comprompt or console. use this "ping whatever.baybak.com"

http://mu.wordpress.org/forums/topic/552