Hey everyone, I recently ordered a M-Audio Keyrig 49 to start playing and recording a little bit of MIDI on my pc. My computer runs Vista; and the M-Audio forums say that it's "plug and play". So I plug it in, turn it on, my computer says that everything's installed and I check Native Instruments Absynth 5. I check the MIDI connections and it recognizes the keyboard; status "on". Yet I have no sound whatsoever. Any ideas on what's going wrong?