Thanks Mica!! I actually don't know if there IS a problem. Both pickups work, the pickup selector switch works (although strangely -- it has 8 possible settings -- I think that the 4 settings are repeated 180 degrees around. The treble boost works, the bass boost doesn't seem to work too well, although it does change the sound (at least in two positions) on some settings of the other control. I notice that the bass boost is only noticeable if I set my amp at settings that emphasize low frequencies. The main issue was really that the switch had been replaced sloppily and the wiring looks like it's been cobbled together. I have made it look much neater. It made us suspicious. I want to get it right for Mike -- he's a really good guy and this is important to him. Thank you again for your kindness! Paul