Try switching roles. Do something you don't normally do. Grab a zeke and go furball till you puke. Forget about score.
Try a tour in a very challenging plane. I'm doing a tour in an F6F5 Hellcat. I'm doing pretty bad, but I'm still having fun.

Try spending some time tanking, gunning on the CV's, driving PT boats. Or grab a Jug and become a tank buster. Whatever turns your crank.
Finally, there is one thing I can ALWAYS do to make the game fun again. I teach others. Yes, helping a newby take his first flights is extremely rewarding. There is nothing that will get you excited about this game like watching a newby get pumped about his first kills. It reminds you just how FREAKIN COOL it is that I can shoot down a plane that is piloted by another guy sitting in front of his computer on the other side of the world. It takes me back to basics and reminds me why I do this. When you work with newbies, everything is new and exciting to them, and you start to remember that feeling. It makes things new and fresh again when I teach. Drop into the training arena and give that a shot, I guarantee you'll learn lots and get an attitude adjustment to boot.

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Sean "Lephturn" Conrad - Aces High Chief Trainer
A proud member of the mighty Flying Pigs
http://www.flyingpigs.comCheck out
Lephturn's Aerodrome for AH articles and training info!