for some reason, when trying to get to my website through my domain using http://www.link.com doesn't work, but when you leave out the www. and just have it as http://link.com it does work. I have other domains with Dynadot and only my one domain is doing that.
You may be experiencing a cache problem either with your computer or ISP (Internet Service Provider). This can happen if you've visited the http://www.yourdomain.com version of your domain before you've set the name servers and visiting the http://yourdomain.com version of your domain after setting the name servers. In this case, the http://www.yourdomain.com version is cached with the old name server settings while the http://yourdomain.com version shows the uncached website.
Tips on how to clear your cache can be found here:
Why is my website offline? http://www.dynadot.com/help/question.html?aid=82