What means
New Stratum data with Clean
12/23/2012 5:43:28 AM Result: b889f31c accepted
12/23/2012 5:45:22 AM Result: 2116cc65 accepted


Processed: 2598 Mhash, 149 s with average Rate: 10.63707 MHash/s
Accepted: 0, average: 0 shares/min

why i see here accepted: 0 is this normal or some bug?
does he really accept shares or no ?