Hi

Sorry to jump on this thread, but I'm pulling my hair out here.

I was running Wolf's XMR Miner without a problem on an ASRock H81 Pro, mining on a few RX460's. I was having problems with my Windows 8.1 License, so re-installed windows.

Since re-installing Windows, when I try to run Wolf's XMR Miner, I get "Error -1 when calling clGetDeviceIDs for number of devices".
I have tried several versions of the Radeon driver and re-installed windows from scratch again, with the same result.
I've tried with just 1 gpu, and swapped that a few times, and tried different risers and slots, in case it's a problem with one of the cards or risers.
I have disabled on board graphics.

The GPU's are recognised in MSI Afterburner with full control over all sliders. TechPowerUp GPU-Z also recognises each card.

I just can't figure out why Wolf won't work.

Any ideas?

Many thanks

Mr S