arc 300

I have a Pro-164 and I'm using ARC 300, I plug in the scanner and hit download, and on the scanner's screen it completes stating it has finished while in ARC 300 it reaches and gets stuck at what looks like 85-90%, at which nothing happens afterwards. I let it sit for about 10-15 minutes to see...

When I download from RR database or enter a frequency manually WITHOUT a pl into ARC 300 it defaults the mode to am. Anyone have a fix for this? Thanks.