Why are if fields all returning true when data location changes?

[AJ_at_Budget]

Copied mail merge doc and data source to C: drive from shared drive. Source
data unchanged. Changed doc to seek copy on C: drive. Most fields work
correctly, but all if fields returning condition true, which is not the case.
Have same result from creating new if fields using wizard.

 

[Peter Jamieson]

Which version of Word?
What is the data source? (Word file? .mdb? Excel?...)
Using Alt-F9 to look at the underlying field code, can you provide an
example of one of the IF fields that does not work, and examples of the
value of any { MERGEFIELD } fields nested inside the IF field.

Peter Jamieson