Ever since the latest iphone update (iOS 7.1.1) the accelerator in trials frontier is constantly set to on. decelerate and leaning in both directions works exactly as it has before the patch, although when I let go of the decelerate button, accelerate automatically turns back on without touching the accelerate button. Is this a widespread problem or is it unique to my phone? any help in the matter will be greatly appreciated. My iphone is model A1529.