RGB 4:4:4 ingest...turning into YUV in frambuffer???

Hi,

We are trying to ingest from an Arri D-21 with dual-link 4:4:4 RGB 1920x1080 @ 25 frames pr second.
Ingest app. is the AJA-vtr Xchange. ( Compression: AJA 10-bit RGB codec + Source 1080i25 10bit)

However when looking in the AJA ControlPanel it says YUV in the framebuffer. Should it not be RGB !?

We are using the latest drivers and software. ( 6.02 ant 4.0 for VTR xchange)
Machine is the latest 2.8GHz Quad-Core Intel Xeon with 4GB ram connected to a Caldigit HDone 8TB
OSX 10.5.4 - QT 7.5

What's wrong??

Marc Bostrom
-| just another PRO FCP user |-