Willy, have you tried clearing your browser cache? I just tried www.seagate.com with Chrome, Firefox, and IE9, and in all 3 cases it worked for me in English, no sign of Russian. If it's not your browser cache, maybe you should boot to Safe Mode and check for viruses.
I tried today with: www.seagate.com goes to webpage and then when I click on support it becomes a Russian version. I did nothing to my browser, so I wonder how others see this.
I see the translate from browser but that fails. The click on proper webpage is available for "language version" but this has never happened before what gives?