I suggest you to try using the latest generic driver in the following site:
You can also try using the previous version posted there to see if that makes a difference.
If the issue persists then try using the customized driver that is directly provided by your motherboard manufacturer (either from their web site or from the CD or DVD that came with the motherboard) and check with them directly if the issue persists.
As I wrote in my first post: " I used the latest drivers downloaded from Intel web site."
I think the drivers on Asrock website and thesе on Intel web site are one and the same.
I'm having what I believe is the same problem. Got a new ASUS high end board today. Using an Intel i5 with Intel HD Graphics 3000.
If no video driver is installed, I can see video through HDMI. If a graphics driver is installed, I get no picture on the monitor. I have tried two HDMI cords and two monitors. Even though I can't see the screen, the system is running fine. For some reason the graphics driver does not want to output video via HDMI.
If I uninstall the graphics driver I can see again. Help!