Pool miner is now updated to version 1.4, please download it from the pts.1gh.com page.
- It now uses stratum mining protocol, stale shares are almost zero
- It is now possible to override workgroup size detection, please try setting it to 64-128-256 if you had 'Invalid group size' error
- Hashrate is slightly improved

using the 1.4 stratum version now, may I request you include a version number somewhere when it starts up, so we can easily identify in the future which version we are running? seems I am almost identical to previous work rates, so the inclusion of stratum to lower rejects should give a net increase with no wasted work time... huge bonus for all.
I started to try out the different workgroup sizes... seems I must settle on 256 as anything higher will error, is that expected for a 2GB video card? I'm guessing a 512 would work on a 4GB and so on? (just taking a stab at trying to understand since I see only 1.1GB of gpu memory being used, ASUS R9 270 2GB)