I just installed The Witness on my laptop running two AMD ATI Mobility Radeon HD 4870, but I keep getting this warning no matter which driver I install (disabling cross fire does not help). I have tried the driver through Windows Update as well as the driver from the Catalyst software.
I contacted the support of The Witness, and they proposed me to go here after a few unsuccessful attempts to solve it from their side.
Can you help me find the correct driver or another fix?
The HD4xxx series is eight years old and reached peak optimisation and moved into legacy status, there will not be any further driver updates to resolve this issue.