Cudaminer GPU detection issue

[Devasive]

This is in relation to Litecoin. I have been attempting to get Cudaminer to work with both of my GPU's in Sli (780M), but each time it starts up it will only detect either GPU 0 or 1, even with a -d 0,1 or similar configuration. A single GPU pushes out a hashrate of around 150 khash/s, though it would be nice to double this by utilizing both of them. Has anyone else experienced this issue and found a solution?