I bought this Surface RT in the UK last May 2014, and now I have been back in Indonesia since June 2014. Recently I just realised my Surface RT has collected some kind of rust grains on the edges. Photos below: The grains are solid and hard to remove. Anybody experience the same please, and how can I rectify this? It's only 2 months now and my tablet already starts to look aged :/ . Never happened with my old iPad 2. Thanks.