Dear god can someone explain how to use Device 01 with rOpenCLMAX

This doesnt work -> rOpenCLMAX.exe -o ypool.net -u Spungey.pass -p pass -d 0,1,2,3
Nor this ->             rOpenCLMAX.exe -o ypool.net -u Spungey.pass -p pass -d 0,1
Nor this ->             rOpenCLMAX.exe -o ypool.net -u Spungey.pass -p pass -d 1

No permutation involving the "-d" flag will work whatsoever. I just want to use my 2nd GPU i dont give  a fuck about the 1st one.
I know the developer specifically said the -d flag doesnt work and he has the code for multi gpus so how are you guys doing it.