So basically I have a BLF non-Jalapeno variety 50Gh/s miner. I run cgminer and have recently been mining from ozcoin after eclipsemc was hit with a recent DDoS. Normally, I have been clocking at around 46.xxG-50.xxG/50.xx-51.xxGh/s. Last night I noticed a bunch of incoherent errors pop up on my terminal window. About 5-8 lines long. The miner would stall out, it dropped to around 18.xxG/19.xxGh/s stuttered around that level for a few minutes then slowly climbed back up to the rather disappointing 36.xxG-39.xxG/37.xx-39.xxGh/s I have been seeing ever since. I've poked around looking for reason for this, and maybe haven't poked hard enough, but I am at a loss. Any ideas on what is happening?