I'm working on a computer for someone who cannot open amazon.com or ebay.com in his browser (IE or FireFox--doesn't matter which I try). For ebay, I sent him a link to an arbitrary item, and he can then navigate Home and search and so on. But he has to open the site through an odd link like that. Trying the same thing did not work for Amazon. Those are the only 2 sites we've come across that won't work. I'm not sure if it's a security setting or some kind of antivirus conflict, etc. Appreciate any input!