Brat --
You might take a look at Select Case statements (pages 293 and 633 of Brian Bischof's book: Crystal Reports Encyclopedia, Volume 1). I'm not a programmer but I've had some success by using a formula that refers to the field that I want to "label" using some other name. Then replace the field with the formula in my report.
Formula Example:
Select {FieldName} //name of field with blanks
case "": "Unspecified" //if field is null then value is "Unspecified"
Default : {Fieldname};; //else default value is field value
Edited by dfolzenlogen - 07 Sep 2008 at 8:24pm