Originally Posted by
sooprvylyn
Make sure your wheel is properly seated in the drop outs. I'd be surprised if you messed up the derailleur, shifter or cable tension just by removing a wheel. My guess is that it is not properly seated.
This would be my guess too. The bike needs to be in a wheels down position when the quick release or lock nuts are tightened on the dropouts. Axle needs to be fully seated.
A bent derailleur hanger is also a possibility. A bike should be on the non-drive side when on the ground.