|A hosts issue now seems unlikely as you obviously haven't put anything in there yourself. It is possible for the website to have been put in there without you knowing but it would be unusual. If you want to take a peek you will find the hosts file in the "etc" folder here:|
Open the "hosts" file with NotePad and make sure that your website does not appear anywhere against 127.0.0.1 (which is the loop back to your own machine and disbles access to any websites that are listed). If the website is shown then delete that line.
For your Restricted Sites list, open IE and go to:
Tools > Internet Options > Security tab > Restricted Sites icon.
Click the button marked "Sites" and see if the website is in the list.
If it is, then remove it.
If you happen to be using "SpywareBlaster" this will put a lot of websites in Restricted Sites. If you are using "SpyBot Search & Destroy" this can also block websites, using either hosts or Restricted Sites registry entries.
If none these suggestions apply then we must think again. Are you prepared to let us know the website - maybe that will give some sort of clue? I have both Vista and XP so I can check it on both. I am not aware of any Vista specific problem of this nature.
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