I'm on a fitness products website. When I click on "Buy It", I get a blank screen instead of seeing the item posted in the shopping cart like what usually happens when you buy an item online. At the bottom right of the page, there is a red traffic sign "Restricted Site." When I rightclick on it, it tells me the site is blocked (just the shopping cart part of the site). So, then I go into Internet Explorer, change all of the privacy settings to allow all cookies all of the time by anybody, re-boot my computer, delete all cookie files, all temporary internet files, all history, etc. , but still when I go back to that shopping cart I always get the message that it's a restricted site! What's going on? Can anybody help with this problem?