I am running 18.0.94 on Win7 64 bit and I added a Peachtree audio iDac to my system via USB using the standard windows drivers. I haven't really used Media Center for Audio before this. I set JRiver to use the WASAPI output mode, as was suggested here. While listening to audio files (mostly MP4, ALAC, and high bit-rate VBR MP3), I started playing with the visualizations. I was running through the options, just looking at each one for a few seconds and then trying the next. Media Center crashed over and over again while I worked my way through the lists. It was very common when I selected something in Track Info. In fact, I just opened JRiver, started a song, switched to Display mode, and selected the 2nd Track Info option to review the menu items I used and Media Center crashed immediately. It hung, audio still playing and cursor showing the "Please Wait" cursor (traditionally an hourglass). That is one of two typical crash morphologies. I don't recall the details of the other one, but the audio did continue playing and there was no hourglass cursor.