Hello. I'm at a real loss here. It appears that something peculiar happened to my D3 system sometime back in March. The symptom is that in a QReport a TQRExpr which goes something like: Sum(DataMod.field1 - DataMod.Field2 - DataMod.Field3 - DataMod.Field4) used to evaluate correctly, but is now ADDING Field4. If I go back to a backup of the project dated November, the project.exe evaluates this expression correctly, but if I run the project - as it was at that time - through the IDE, as it is now, then I have the same problem of the expression ADDING Field4. It seems that something must have happened to my Delphi/QR installation. Does anyone have any thoughts on this, other than re-installing Delphi and packages? Mark
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