I bought a plastic bumper case for my 3GS but I didn't realize a problem with it. There is no slot on the upper-right for the power on-off switch; instead there is a bump rising from the plastic. The seller told me I must press hard to use the switch. As a result, I have sore fingers. Likewise, the volume switch on the left side of the unit also has no cut-out for the switch but has a bump in the case instead. Why wasn't cuts made? There are open-cuts for all the other controls and a hole for the camera lens as well. Maybe the case is defective that's why I only paid $5. Aren't the bumper cases supposed to have cut-open slots for these controls? Thanks.