I have two (2) two gig sd cards in my N800. I am only able to store 1 gig on the external card ( I haven't tried the internal card yet). The paperwork with the N80 says it has a max capacity of 2 gigs but I have seen where many people say they have 4 or more gig external cards working without any problem. I cannot get any more that one gig on the card - I get the error message that the card is full? Any suggestions?