Great forum and good info.My son bought a 3900 receiver from a school buddy with atmega128 card.Of course he knew nothing of testing so here is where I am stuck.....either learn or trash 150 bucks. which is better - Bev or echo? Jtag is connected but get failed to flash messages. Also when connecting my multitester to the solder pods to the pins, I get a cross reading (Pin 3 also shows reading on pin 5 and ground. This doesn't seem right, is it. 3rd qustion...what does the Lock thing do and the button on the top (both add on's) Thanks for the help............mp