I have a bad habit of asking stupid questions. I was playing my stingray a few moments ago and noticed when turning my eq knobs that it wasn't having any effect on my tone...or if it was it wasn't noticeable. I don't recall it ever being this way so I replaced the battery thinking it might have died on me but still having the same problem...and I know this battery was good. What could cause this? I have a show tonight and I miss my tone.