Kohler CV940 Oil Leak

I have an Exmark with a Kohler 34 hp CV940 engine purchased in June 2011. It has 328 hours on it. It leaks around the rear-most rocker cover. I replaced the gasket friday, came in today and there is oil all around the bottom of the cover again. There is no sign of oil coming from anywhere else. I removed the cover again, checked the gasket, checked the cover for damage/defects, nothing. My next move is to buy a rocker cover kit, and replace the gasket and cover and see what happens.

Any...

Kohler CV940 Oil Leak