problem with slider controls in settings

I'm on Firmware 2.2 and am having trouble with slider controls within settings like brightness and especially volume under Sounds > Ring. I have my finger dead on the slider and it often doesn't recognize or "grab" the control. It takes many tries before the slider is "grabbed". I found that it's easier to grab when the control is at its lowest level. I have no issues with the big sliders for instance when unlocking the phone... anyone have experience with this?