Hi:
A couple of folks have recently reported that the latest beta driver works.
The previous one did not, but the one prior to that did.
I have since given it to a couple of others, but have not gotten any replies back that it did or did not work.
If you want to give it a shot (make your set of W8 recovery media first if you still have W8 installed)...
Here is what you need to do:
1. Install the Intel chipset driver and reboot.
2. Install the Intel graphics driver and reboot.
3. Download and install MS Net Framework 4.0.
http://www.microsoft.com/en-us/download/details.aspx?id=17851
4. Download and install the latest amd catalyst beta driver.
http://support.amd.com/en-us/kb-articles/Pages/latest-catalyst-windows-beta.aspx