confused about default web for IP

Hi all.

I am pretty sure this is a DNS issue but unsure as to why/What is stopping it work.

I have created a new domain and all is working ok as far as i could tell. mail is working and default http://domain.com is working etc.

The problem is when i try to go to the http://www.domin.com instead of the http://domain.com i get the default web page for the machine IP (as specified in the website options section of Virtualmin for the domains)

If i make this domain the default website for the IP address then all works ok, But i do not want it to be the default for the IP as i run my own webpages/services on the box.

I have checked the dns entries against another domain that works ok and can not see any difference between them.

Any Ideas anyone?? Erik? ;)

eX Thanks in advance