Does it meen that i calculated shares but its not submitted? Why its marked in shares column then.
27.05.2011 06:29:46 0h 10m 200471 0.00532247
27.05.2011 06:19:40 0h 40m 810855 0.00669910
27.05.2011 05:38:48 0h 00m 2589 None
27.05.2011 05:38:37 0h 15m 306239 0.00633492
27.05.2011 05:23:09 0h 20m 411239 0.00719411
27.05.2011 05:02:33 0h 00m 1082 None
27.05.2011 05:02:22 0h 18m 380065 0.00701854
27.05.2011 04:43:23 0h 37m 736802 0.00770153
27.05.2011 04:06:22 0h 11m 222872 0.00761648
27.05.2011 03:55:10 0h 14m 294037 0.00544319
27.05.2011 03:40:34 0h 00m 4021 None
27.05.2011 03:40:18 0h 11m 240401 0.00786810
27.05.2011 03:28:21 0h 05m 113359 0.00984042
Some days ago i had a reward for even 3000 calculated shares and such problem started before new difficulty.
May be my luck has gone
All cases of "None" are rounds that lasted less than a minute. If you look at the number of shares submitted, they range from 1082 to 4021. Think of how fast the high end users are hashing with all their workers. Now, watch your miner and see how long it takes to actually get a share accepted. Essentially, you submitted no shares before the round ended ... you were still working on your first share of the round. If you are watching the output [i.e. like with Phoenix], you probably would see two lines in a row indicating a new long polling message. That would be your "None" round.
If the rounds had any duration, say more than one minute or so (depending on your hash rate), then that might indicate something is wrong. All that you show are 0h 00m which is clearly short enough where you wouldn't have submitted a valid share.
BTW ... those shares are total for the round, not total that you submitted for the round.