Have a Surface RT that doesn't seem to be responding to depressing the on/off switch. Mine displays the boot -up surface screen and then the battery status (with 1 bar) and then goes dark. The last time this RT was used was to do the most recent windows updates. Not exactly sure what may be going on?? I have two chargers and have attempted to connect with each one and the result is the same. Also, once seated correctly I do not get white indicator light on the charger to illuminate. Would appreciate any knowledge or ideas from anyone that might shed some light on this issue??? Thanks in advance!