Wirelessly posted (Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_3 like Mac OS X; en-gb) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5) Whenever I hit the lock button with an app open, my screen goes dark, like it should do - the the lock screen flashes up, and I have to lock it again. This lockscreen is different, as the slider is lower on the screen. When locking it FROM the lockscreen though, it works perfectly. It's not due to another theme/tweak. What can I do?