757 Block F v1
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FS9.1
WinXP sp2
nVidia geForce
2GB RAM
MD Athlon 3200

OK im now officially flummoxed!!!  How do we get the ZFW for the CDU? I see in the manual that the ZFW is in the form of thousands of lb's with a decimal for the hundreths but where do we find this value?  As its lb's used I changed the international setting of FS9 to US System so everything is in pounds.  When I input a value its says INVALID ENTRY.  I have tried this in the metric settings for FS9 too using the metric equivelant and still get the INVALID ENTRY message.  Please can someone tell me a ZFW value and does the sim have to be in Metric or US System for this to be inputted.  All weights I entered where either from the ACE for the 757 or what I calculated from the aircraft.cfg ie adding the empty weight and the station loads together.

Rich