Hi,
It looks like that I finally managed to solve my problem with my Acer Iconia W700P:
I had to make full factory reset to my tablet so that OS changed back to Windows 8, then upgrade to Windows 8.1. After that Windows loaded driver version 3379 from Windows Update and that version worked.
I have to say that I am not happy that I had to reinstall everything in my tablet to get simple graphics drivers to work. AMD and nVidia graphic drivers just work when you install them, but with Intel ones I have had only bad experiences. Thus I am interested if Intel is planning to start driver quality program aiming to catch up its competitors in driver quality? Good hardware is pointless after all if drivers do not work as expected.
