I'm using VS WD express edition - testing (debugging) the website I'm working on and when I click the debug button IE opens but does not bring up the default page - just an IE error page: "IE can not display the web page". When I click on the IE error-page-button labelled "Diagnose Connection Problems" I get the following message:

"local host is not set up to establish a connection on port "52930" with this computer"

Can anyone help? This is obviously my first time using VWD so - I'm not sure what's going on - is IIS using the wrong port? 

try this link

http://forums.asp.net/t/1395973.aspx

You don't mention your OS. If it is Vista, an automatic update or certain virus protection apps may have made a change to your 'hosts' file.

Your "hosts" file is what tells your computer that "localhost" should map to "127.0.0.1" so here is where your file is:

    C:\WINDOWS\system32\drivers\etc\hosts

Close Visual Web Developer and any browser that is open.

Locate the 'hosts' file using Windows Explorer

Open that file in Notepad under a 'computer administrator account'. The following entry should be present. If it is not, or does not look like the following, add or edit the entry:

    127.0.0.1       localhost

Save the file and try to open your default page in IE

-Preston

Preston,

Yeah sorry I should have mentioned I was working on a Vista machine.

Yes, the host file contained the following line:

::1 localhost

so I changed the :1 to the loopback address and it worked (after fiddling with the permissions for a while)

Thanks for the help

 You're welcome. I am glad you got it working!

-Preston