MIDI to VC conversion is working

I am now actually having a working path from USB to control voltage. I tried hooking it to my messy synthesizer,which doesn't seem to work. I then discovered that the converter only works if PicKit2 or the I2C analyzer is connected to it. My thought is that there is some issue with grounding in the board. I'll look into this. The actual working code and HEX is here. It still contains a lot of debug code though, and it doesn't sport all features yet...