hi all,

I'm pretty new to css and am trying to set the website to "at least be viewed at a resolution of 800*600 with no horizontal scrollbar........preferably with any browser. Thanks.

Without a page to see, hard to say. Can you post the address (url) of a page that demonstrates the problem?

In the meantime, see the FAQ entry For what screen size should I write?.
And you also might want to validate your HTML markup and the CSS with the online tools.