Anybody have problems with running out of gas while the saddle tanks are still half full?

have you checked the valves on the saddle tanks?, are they in the on position?

Yup, it's mainly the port side. It's almost like the stand pipe has a hole in it. I've also ran out of fuel while the main tanks have read 1/2 full, but I pulled the sending units and they work fine. Really weird..... and embarassing.