Getting used to this camera now. The metering is quite odd. Basically, I'm not sure what its telling me, because when I do long exposures, what it considers to be 'exposed' is actually making sure all the pixels are about 90%!
I think its a bit temperamental. On the slrs that I've used, you point and shoot, and the meter is nearly always spot on. Perhaps something to do with CCDs having less dynamic range than film?