My lovely new monitor works beautifully with windows 7 in my Shuttle SH67 using the HDMI port BUT:
It does not display the initial splash or BIOS screens - or the initial GRUB menu screen that I like to use to choose between operating systems. The minute it enters the Windows system, it's all go.
This is the same when I connect it up to a lenovo laptop and boot from scratch - I can see the splash screens on the laptop but not on the attached monitor., so I don't think it's to do with the Shuttle.
I have a feeling there is a switch somewhere I have not found ..... help.