I just want to make sure it is all working. I know these are insignificant numbers, but I just need some clarification.

My BTC payout was 0.0054 for days and I had my first successful transactions from p2pool. A day later my payout dropped to 0.0026 and now it is at 0.0000, why has it gone to zero and has it stopped working or does it reflect my miner just not solving any recent shares?

I use p2pool and cgminer and have had no problems up until the payout hit 0. Any help is appreciated.