I have 3 accounts on my computer (10.5.2, latest Safari), and 2/3 work with eBay (.co.uk and .com) fine. These 2 accounts are an admin, and standard account. But, on one of the accounts (simplified, parental controlled, but websites aren't limited, just apps), they eBay.co.uk or .com homepage loads fine, but when the user clicks any of the "sign in" buttons/links, Safari displays the error "Safari cannot find the server". All other websites work fine. I've emptied cache, history, and cookies, restarted many times etc., but it's always the same just on this account. Can anyone help?