Haven't seen that problem. However in answer to the second part, with the cover on, it should be in power saving mode. Hoever even in power saving mode it still draws power, just not as much. It should last about a week in standby. However, I just tested and couldn't get my nokia to power up while the case was on, after I pulled it out, and turned it on, it did complete the start up with the case on, so this is just strange. See if it happens anymore or if this time was just a fluke.