first time poster. I need to replace a Casablanca ceiling fan in my house that we've owned for a year. The house was custom built in 2002. I bought a Hunter ceiling fan to replace the old one, but the holes in the junction box (which match the Casablanca fan) are too narrow for the Hunter mounting bracket. Can someone take a look at the attached pic and make a suggestion as to what options I have? I'm confident that the junction box was installed when the house was built and would be really surprised if the box wasn't rated for a ceiling fan.