Hello everybody. This is my first post here so be gentle. I have added onto my house and finally finishing up my project. We added a great room onto our kitchen with a mudd room. I put in a 6' patio door center hinge. I noticed over the weekend that it is very difficult to open the door and the door knob doesn't line up with the striker plate anymore. I checked the frame for squareness and it only out 1/16" total. What has happened and what do I need to do to fix this problem? Thanks for your help.