subdomain redirect to directory

hi

i'v added sub domain to my domain in cpanel
forums.domain.com
but when i type it in the address bar i see it redirect to domain.com/forums

i never seen anything like this before so i'v no idea how to change it
how can i change that

Edit
i just figured out this
i'v this mod rewrite in my .htaccess to redirect www.domain.com to domain.com
when i removed it the sub domain worked ok
so how can make the subdomain work and redirect www.domain.com to domain.com ??

 

Never seen that before myself..

try deleting and adding the subdomain again.

 

deleting and adding the subdomain again wont help i figured out what happed
post edited

 

i'm still having problem with the subdomain
how can i redirect directory to subdomain
domain.com/forums i wanna redirect it to forums.domain.com

and in the same time i wanna redirect www.domain.com to domain.com
i'm using mod rewrite

but when i do that the subdomain doesn't work is there is any way i can make it work??

 

Here is a derivation of what I use - this also deals with wildcard subdomains

RewriteCond %{HTTP_HOST} !^forum\.example\.com [NC]
RewriteCond %{HTTP_HOST} ^(.+)\.example\.com [NC]
RewriteRule (.*) http://example.com/$1 [R=301,L]

Or you can simply use:

RewriteCond %{HTTP_HOST} ^www\.example\.com [NC]
RewriteRule (.*) http://example.com/$1 [R=301,L]

 

now it work thanks