Thanks error,
I thought so too (that I'd been lucky). I wonder what the odds are of three blocks in a month @ 'only' 2100Mhash/sec.
You got lucky. Don't expect the same kind of results for the next month.
Odds for finding different amounts of blocks during 30 day period with 2100Mhash/sec are about as follows:
0: 44.8%
1: 36.25%
2: 14.29%
3: 3.74%
4: 0.74%
5: 0.17%
6: 0.01%