When creating, modifying or opening a report, you receive an error message:
Object variable or With block variable not set (Error 91)
Either A) you have attempted to sort a report by the field "Last, First" or B) the ShoWorks report index is corrupt, usually due to a system crash or instability (more information here).
A) Choose a different field to sort the report by or...
B) Download and run the latest update for Showorks found here or reinstall ShoWorks.