I have had my Surface 2 for a year and had occasional problems with the charger. These were always minor and were fixed in minutes. However, this time the charger will not work at all. Details: The light on the charger is on when connected, however it doesn't charge. The top one of the small prong things in the charger slot on the Surface is deeper than the others (is that normal?) I have done the uninstall and update method and it has not worked It's been starting to work for a split second every now and again Any suggestions?