My husband and I have been trying to install crown molding in our old house. We spent 3 hours Saturday night and still couldn't figure out how to do the corners (inside and out). Our house is about 95 years old and we have renovated it all by ourselves with little trouble, from installing a new roof to gutting the inside, new wiring,plumbing, etc. Why can't we figure out a simple thing like crown molding. We are very frustrated. Can you please give as directions w/pictures please. I would really appreciate it.