If the person renting HashMaster6 is on here ("loz"), please check your pool. CGMiner shows endless new blocks and rejections like this:
[2014-01-29 20:42:17] Stratum from pool 0 detected new block
[2014-01-29 20:42:18] Stratum from pool 0 detected new block
[2014-01-29 20:42:20] Stratum from pool 0 detected new block
[2014-01-29 20:42:21] Stratum from pool 0 detected new block
[2014-01-29 20:42:22] Stratum from pool 0 detected new block
[2014-01-29 20:42:25] Stratum from pool 0 detected new block
[2014-01-29 20:42:25] Found block for pool 0!
[2014-01-29 20:42:26] Rejected 01e6e924 Diff 34.5K/1024 BLOCK! GPU 5 pool 0 (Worker is temporarily banned
There is no reason for the worker to be banned, and you're not receiving credit for the found shares and blocks.
Also the pool's vardiff is sending difficulty 1024 work for a 0.xxxx difficulty coin which is a recipe for failure.
Me and the roommate had a chuckle at that one
