Not easy to say, since the index key was constructed along the way based on user criteria (clicking on column headings).

Problem disappeared after removal after filter and tags; not sure which was the culprit.

>Jim,
>
>What was the index key, BTW ?
>
>>No memo fields -- but there was an index tag and a filter.
>>
>>After removing both the index tag and filter before the ZAP, the error does not seem to recur.
>>
>>
>>>>I have a cursor that I want to ZAP, since it's used as RecordSource of a grid.
>>>>
>>>>However, when I call ZAP, I get error #18 -- "Line too long".
>>>>
>>>>Any guesses on the possible cause?
>>>>
>>>>Thanks in advance
>>>
>>>Do you have memo fields in this cursor? Can you show your exact code? Did you use ZAP IN myCursor ?