BB Bold 9700 :: Lost Stand-by Ability?

Anyone else noticed after updating to 5.0.0.743 that they've lost the ability to stand-by with top right button? Is there an option somewhere i'm not looking to set what each button does.

I do alot of single handed typing/everything on this phone and it's impossible with my hands to reach the keyboard lock button. It also increases the risk i will drop my phone in the lake when boating because the only way to single handedly reach the keyboard lock is to remove my right hands pinky from below the phone thats holding it up, pinch the screen to twist it and then press the button (all single handedly).