I was having similar problems in that I tried to upload to the p/c, but never got a status bar on the p/c. It would just say failed, check cable connection. I then saw Daniel's comment about com1 sharing with Palm Pilot. I did have hot-sync software running during these failures. I disabled hot-sync and tried the upload operating program to p/c and it worked fine. I tried the upload learned program to p/c and it failed like you describe with 2 bars in the graph, I did retry and got 3 bars, then I did retry again and got it to succeed (each time canceling the remote function and doing the up-load button when prompted to do so). Hope this might help someone.