***edit*** when i try to run upmpdcli in terminal i get the following error:
Can't open pidfile: flock failed. Return (other pid?): 417
This error normally means that upmpdcli is already running, which you could check with the following command:
ps ax | grep 417
If upmpdcli is indeed running, you should see the runeaudio renderer when using the bubble upnp menu for choosing renderers.