ASCP Plan shows bad Planned Quantities when using Min Ord Qty and Fixed Lot Mult combinations

We have define a item with:

Min.Ord.Qty = 571

Fix.Lot.Mult= 49

Forecast 630 unds. period 1 22_10_2010

Forecast 1200 und perido 2  23_10_2010

The ASCP Plan  generate a planned order by 649 to 22_20_2010

      The pegging show

      To period 1= 649 with 630 und (Forecast period1)  and 19 und (Forecast period 2) 

To Peririod 2 planned Order by 1239 to 23_20_2010

      The pegging show

      To period 2= 1239 with 1181(remain period 2) and 58 und (Forecast period 3)

What Configuration combines the partial quantities of two periods??

Thanks