Microsoft Expression Encoder Pro issue.

Hi I have a GTX 680 and I bought Microsoft Expression Encoder Pro SP2 for utilizing CUDA encodes please see below.

I’d like to report that CUDA encodes do not work with Microsoft Expression Encoder Pro SP2. I have tried the latest WHQL 301.42 and Beta 304.48 drivers and even though the software sees the CUDA of the GTX 680 it is no utilized.

Can I request that this is fixed or reported to Microsoft?

If not I’m getting rid of the 680 and will have to revert back to a 5 series card.