Hi Nico88, I suggest contacting the manufacturer of your system for the driver update. Most of the Tablet PCs will require specific drivers that are created by the manufacturer of the system itself. Generic drivers like the one posted on our web site may not work properly with your device.
Thanks for the suggestion. I posted this on Microsoft's forums as well.
However,if you look into the other 2 threads from intel forums that I linked, you will see that the issue is not limited to surface devices, but affects other intel HD4000/4400 users as well.
Please try the latest driver announced here: - NEW- Intel® Iris™, Iris™ Pro, and HD Graphics Driver update posted for Haswell and Broadwell version 184.108.40.20622
Be sure to enable "Override Application Settings" in the Intel HD Graphics Control Panel.