I have manual Avid disc brakes.
I took my front wheel off like I've done hundreds of times. When I put it back on the wheel is aligned properly with my fork, but the disc presses against one of the brake pads. This causes a lot of squeaking when I simply roll the bike and a ton of friction that will eventually destroy the brake altogether. This really isn't making sense to me other than the possibility that the caliper just isn't aligned properly, which seems practically impossible because all you do is screw it in.
I have tried adjusting the sensitivity of the brakes to the point where the problem pad is off of the disc. Then the other pad is so far out that I have 0 braking power when I try to apply it (other than a little friction from the problem pad). Can anyone please help me?