I got the R box about a week ago. I never got the 100-110 ghs I was supposed to get until I changed the frequency to 330. Everything was fine until I noticed the hashrate had dropped from 108 to 80. Then my sister came and used the computer and quit cgminer by accident. Now I am only getting 80 ghs maximum but it eventually drops to 40 ghs and won't go up that much :/ I  tried on my mac on macminer and it is still pretty much the same... any suggestions ?