I hadn't used deepbit in a very long time (2 months :D ), and now submitted a few shares.
From the stats page, I can tell that I should've earned 0.01558598BTC total (I stopped mining more than 1 hour ago). However, my current balance shows as 0.01234512 BTC, even though I had a sub-0.01BTC amount left in there from 2 months ago.