I just noticed my client rate do something wierd see a part of my screen output:
p = 631284610721279 @ 305kp/s
p = 631284620721413 @ 315kp/s
631284623207759 | 10223*2^5901113+1 (duplicate)
p = 631284630721447 @ 314kp/s
p = 631284640721447 @ 309kp/s
p = 631284650721497 @ 313kp/s
p = 631284660721523 @ 4294967047kp/s
p = 631284670721633 @ 314kp/s
p = 631284680721649 @ 314kp/s
p = 631284690721669 @ 309kp/s
p = 631284700721693 @ 302kp/s
p = 631284710721701 @ 297kp/s
p = 631284720721723 @ 303kp/s
p = 631284730721759 @ 269kp/s

I think there may be a bug in the rate calculation.

Craig.