I installed my cabinets level, but when I went to install crown molding at the top, I found that my ceiling was not level, as I had a gap at one end, while the other end makes contact with the ceiling. What is the best way to fix this problem? I tried putting a piece of the same stained wood on top of the cabinet where the gap was and then putting the molding all the way to the ceiling, but it doesn't quite look right. How is this situation usually dealt with? I have to go against the ceiling with the molding, as i have taller cabinets and only an 8' ceiling.