SharePoint " webpage cannot be found"

[Newb2IT]

Hello, I just finished installing Share Point Services on a Windows Server 2K3, installation went fine witn no error messages...at the end of the installation a browser automatically opens up wit the url:

http://mysharepointservername/

however the page that opens has no information at all, all I can see is the webpage cannot be found message (http 400 bad request)...is there any additional configuration that I need to do so that I wont get that error page?....if i try to central administration (

http://mysharepointservername:37827)

I get asked for a user name and password, I enter my domains admin account and I am able to login successfully and see all the configuration options in central administration. I am assuming that regular users would have to point their browser to

http://mysharepointservername/

to access SharePoint however as I said they get the error page instead of sharepoint.....do I need to do anything to make sure that users do not get that error page when they try to access sharepoint??