Forecasting (6.1)

Does anybody have any definitive rules on how forecasting operates at 6.1?
I thought I understood the basics but I'm getting some entries where the
forecast is showing as fully consumed when I would have expected a
requirement to exist.
Any ideas gratefully received.

Richard Bailey
Dudley Industries
Mailto: rbailey@...
Tel: +44(0)1253 738311
Mob: +44(0)7836 550360
Fax: +44(0)870 7628173

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