I would need more information in regards to your system configuration:
Which version of Windows do you have?
Also, the exact processor model and the graphics controller:
Click the Windows icon, and then right-click Computer .
Select Properties .
Find System Type on the Properties window, and then note the processor model.
Are you trying to use dual clone or extended desktop?
Windows 10 build 10041
I'm trying to extend the dekstop
this setup worked perfectly under windows 7 and win10 build 9926
Windows 10 has not been officially released. At this stage, you need to keep using win7 or wait for official drivers for Windows 10 on downloadcenter.intel.com
Rolling back to Build 9926 fixed the issue.