FYI: AK is selling the AK380 + Dock + CD Ripper Bundle for $3599.
As far as I know AK only support the AMP micro USB for charging and not transfer. However, you might want to install/reinstall the bundled USB drivers from your AK380 to see if it works better, or just use a third party program.
AK380Cu sold and going to a good home tomorrow, plus I told the new owner about the case and he ordered one. Please let me know if anyone of you have a Cu Amp or CD Ripper for sale, and I will link you up with him.