I have 2 of these chargers with the newer charger I went to upgrade to the new sotfware when I recieved it, I messed up the connection as I have a new computer (usb to serial port converter).
Had the same just 2 lines in the manual it explains these lines in the download section, it doesn't mean the charger is faulty as my new charger showed these same lines as I stuffed up the download.
I got both chargers to download the latest upgrade through the usb port but it did take time.
I had to switch usb ports(tried all 4) untill I could get the connected sign showing then it still takes awhile to download to the charger.
My thoughts are that it takes longer period of time to upgrade through a usb to serial port converter compared to the older serial port, I have just upgraded my computer from a pentium 2 333mhz to a dualcore 1.86ghz with vista and I felt the new computer was slower to upgrade the ICC.
By the way I am a 40+ computer illiterate fool (as I think of myself) so be patient( that aint easy sometimes).