I have a measure that can't be aggregated (forecasted average item price per
month per productgroup), only values calculated based on this measure can be
calculated.
I have set its Aggreagatefunction to none.

But when i'm browsing the cube and go down to the 3 dimensions wich this
MeasureGroup in used in i still can't see any values. No other dimensions
are used in thos browse.

This used in means that in the Dimension Usage this measure group is linked
to these dimensions.

I thought that at this level at least i should have seen values.

Sorry wrong Forum, i've re-posted it in Olap.