Aight I have the cable that goes off to two unbalanced cables with tip in the input and ring in the output. Now when I try to insert it on a track on pro tools it is telling me that the I/O is already being used by another device which is my output for the overall mix. Having only two input and outputs on the Mbox, how am I supposed to insert the effect on a track in the software? It is treating the insert 1 and 2 like they are also analog input 1 and 2!!