DNS/Homename Problem

[Secunix]

Hello there everyone,

I've just got a dedicated server and i'm having a few problems. I wont give URL's here, but i will give an example;

The hostname of my server is; server.mydomain.com
i added a new reseller account with the domain mydomain.com so i could upload my site. But here is the problem.

When i go to the address: http://www.mydomain.com/ i can see my pages.

but when i go to the address: http://mydomain.com it sends me to webhostingstuff.com (i have 2 banners on my site, maybe thats why?)

I really have no idear, and any help would be welcome.

Thanks.

[Lyttek]

What does dnsreport.com show? any errors? does your domain have a www entry?