Ok, I'm just going to throw this out there. For any weird glitches or quirks I strongly reccomend the Flash to Stock Thang. I flashed from 811 to 905. I hard reset 811 first. Despite this, my phone was still acting as if InCall Power Manager was installed (
screen going dark during call based on light sensor or G sensor) eventhough it wasnt cooked into 905/6. So I flashed to stock ROM, hard reset that, flashed to Energy, hard reset that 2X (just do it), then soft reset and 906 is as beautiful as ever. If you still are a Stock Flash Denier check out Threefaces guide (you should anyway) he is a Believer too.
Hope that helps.
Thanks Nrgz, as always you 'da Man!