Hello – I need some help.. ive been working on this problem for about a month.. I guess its time to ask for help..Issue: Trying to get PC to work with RL70.. at a min, I want to send waypoint data back and forth. AND I did not want to purchase Raytech software.Parts: PC, RL70 (came with boat in 2000), Seatalk conversion box, C-map reader, Maptech software, Garmin software, various gps utilities, hypertermWhat I have done so far: 1.Bought cmap reader.. eventually found out I need to upgrade rl70 software.. so threw that solution out. 2.Next.. I bought the seatalk/nmea box .. hooked it up.. Symptoms: are seatalk LED light on.. in hyperterm.. I am able to see all kinds of inbound transmissions.. in maptech using furno settings.. software inits fine.. gets my lat/lon.. then I do an import or export.. goto rl70..hit (mark) send/rev.. does nothing.. Is the bottom line I need to have raytech support to send waypoints to rl70 ? or do I have a setting or two off..Or is there some other nice piece of non raymarine software I need ? Thanks for your help.. I greatly appreciate it./Paul u17pjg@hotmail.com