Claymore disappear again? I would think he'd like to update his software to allow mining 4GB until that time but nothing. I stopped using his Mining software once PheonixMiner came around. Now there's other options at hash just as good as his. He was first to market with "soft-mod" BIOs for Nvidia 1x00 and AMD however, props to him.
There's couple of miner are available inside of this section you can chose one that are fitted to your gpu's/asic needs. I agree I once running Phoenix in my gpu rig and it seems it gives and add to my riga good hashrate power, I stopped to use Claymore since the day that good miner entered to this forum.