One son is using the my old HD4890 and one son the HD7970, both playing warfront simulation games always from Steam sale and they are not the most modern games, I bet all DirectX9 maybe even DX8 and I never hear they have problems in playing any of these games after an Vcard update by MS Windows, which is generated automatic because of safety.
Most problems are what I think caused by wrong installation, not doing a clean install, or even the wrong driver is selected.
edit: Yep one problem because windows was installing the iGPU driver and not the external.
Let them try WOFF UE and then report. I am talking only about combo WOFF UE + Radeon HD cards + new graphics drivers.
If it helpful to you, I could give this a try, only not this weekend, because of my other activities that has something to do with freinds and lot of wine or beer.
What driver nr and were did you download this, before we get an discussion on that.
Edit: doing something better, we let Windows update install the driver, after a complete driver wipeout, so we have both the same version and from the same source.
