I have the D34010WYK and installing these drivers did not fix my issue. I'm also running the latest bios. To recap my issue. When I start Windows 7 without my receiver turned on, Windows detects no display at all and as such I'm unable to remote in using either VNC or TeamViewer. Also, XBMC fails to load (it is set to start at launch). If, however, I turn on the receiver, I get full display and can use all 3 programs. Even if I then turn off the receiver afterwards, everything appears to continue working until a restart.
My big issue right now is that I've had to disable automatic Windows Updates until this is resolved. Any update would be greatly appreciated.