Um, on the site redirect thing, most of the time it is a malware/virus issue. I've had it happen to me and I had to get a good anti-virus to get rid of the issue, but if you're being redirected from a page it's most likely that. And it's weird because it tends to happen only the first time you click the link, too (though on a few times I had it happen constantly). I highly recommend getting something like 360 Total Security and Spybot: Search and Destroy in order to weed it out. Also, check your extensions/add-ons - sometimes they sneak in there, bundled with some other download or installation at one point or another. I've not had any redirects since I checked over my computer and mediafire works just peachy for me.