I wouldn't worry about it, the volume is extremely low, so the price is going to fluctuate like crazy.  Today's drop was probably people in this thread dumping because of the casino delay.  I mean, when Casinocoin showed up and Transcoder came back, the price spiked 800% in a day

Good news is - price goes down, so does difficulty because it falls off the radar, so mine away and hope that the community rallies to provide enough support to turn this one into a contender.