Note about Sub-Domains - if your site is going to use a sub-domain - see article titled "DNS Entries for a Sub-Domain" and follow those instructions rather than the instructions in this article. Otherwise keep reading...
If you purchased hosting from MarketGrabber after 1/1/2011, your DNS server settings should be:
To set your DNS servers, login to the Registrar where you registered your domain name and set your DNS servers to those listed above.
Your web site will not be accessible by domain name until you do this.
Your email accounts will not work until you do this.
Note: for purchases prior to 1/1/2011, please fill out a support ticket and we will determine your correct DNS server settings.