Sorry!!! I have not been on the site for a while. Business and work have kept me busy. I posted about the Lowrance software chip. I have the Lowrance 330C combo GPS/Sonar, and bought the Nautic Path USA chip from Lowrance (LEI Accessories). Cost $99 at Cabellas. Gives me ALL East Coast & West Coast. One Chip. The problem I had when put the chip in was that my software op system was 1.0.0 and crapped out when I went to move the screen.. . Called Lowrance, they sent me the software update on a chip to 1.3.0 and I followed their directions and it was easy. Chip works like a charm, gives better graphics detail than the original unit, has bouy information, tidal phase, information icons for marinas and points of interest with detailed information on fuel, services, etc. And improved reilability on the GPS side. I really like the unit with the $99 investment. Beats Navionics or Blue Chart prices.... just my 2 cents worth.