My Garmin 2006C appears to be fried. I turned it on this morning and it looked just fine until I left the dock and saw it wasn't registering any speed. The satelites were fixed, and the display looked fine. I shut it off, restarted, and it came back up and worked for a few seconds, then quit responding again. This time, the on/off button would not turn it off. In fact, none of the buttons worked. I shut off the power to it and restarted. Nothing. Went back to the dock and looked everything over. No power or connection problems. The next dozen tries, it would not even turn on. Then it got to where it would turn on and display an all white blank screen after some weird rainbow loooking blips at power up. But none of the buttons do anything, and I have to remove the power to shut it off. I don't know what it is. And I ain't happy about it.