Woah there. That simply cannot be true. In fact even taken as you yourself not getting a share, over 24hrs, that's not impossible, but incredibly unlikely ... with your stated MH/s? It's out there in the thousands to one sort of field of probability. A rough head calc guess tells me you might have to mine for 8 years+ to see that kind of bad luck over a few days. Are you sure you've got the network side working?