I am getting about 3 blocks rejected for everyone that I find on my 280x. Anyone else having this issue?
I also can only get my 280X to mine. My 270X will not mine just HW errors and my other pc with Nvidia cards also nothing but HW.
I have the same problem. I have a rig with two 280x cards and one 7970 and only the 7970 does not have hardware errors. It's also the card that my monitor is plugged into.