As the title says, it seems that all of a sudden, pressing either of the volume buttons on my iPhone 4S while it's locked causes the screen to turn on. Just the lock screen though. I don't really know what changed it to do that, and I can't find anything that will make it stop. Activator isn't doing it. However, it only seemed to start doing this after I recently installed a tweak, but that tweak was the one that lets you have 5 icons on the lower dock...I'm not sure how installing that would cause my volume buttons to turn on the screen while the device is locked.