I would try cgminer, I managed to knock out at least 10% of stales. I can send u my configs if u have either Gigabyte WF3 7970OC or WF3 78502G
Come on. I have 4 7850 Gigabyte on the ferm.
Up to you, but I reckon reaper is your problem
I am using ATI catalyst 13.4 drivers, Ubuntu 12.04, AMDAPP 2.8 (405-410Kh/s sustained for months) per card
display: :0.0 screen: 1
OpenGL vendor string: Advanced Micro Devices, Inc.
OpenGL renderer string: AMD Radeon HD 7800 Series
OpenGL version string: 4.2.12217 Compatibility Profile Context 12.104
Cgminer 3.2.0
export GPU_MAX_ALLOC_PERCENT=60
cgminer --scrypt --gpu-fan 100 --remove-disabled --gpu-powertune 20 --gpu-engine 1160 --gpu-memclock 1300 --worksize 256 -g 2 -I 13 --lookup-gap 2 -o http://_____:____ -u ____ -p ____