Duplicate Lines and Resources

[JRWarring]

I have a VB application with about 75 installations that uses the Crystal Control (Version 7.0) to print Crystal RPTs. On about 7 of these installations the clients are getting duplicate lines (usually on the last page or a single page report).
1) Using the same data (and reports) we cannot create this problem on any workstations execpt the 7 workstations that have the problem.
2) We do not think it a data problem, since we can clearly see in the [access] DB that there a 6 records, while the Crystal Report is clearly displaying 7 lines.
3) The report has 3 groups and the buplicates are with the detail records.
4) I have tried suppresion in the Section with
Whileprinting records;
previous(RecordId) = recordId

QUestions;
A) Are there any known resource requirements (Available Physical Memory/Available Virtual Memory/Page File SIze) limitaions anyone know of?
B) Any other ways in Crystal to attempt to resolve the problem?
C) ANY general suggestions, comments, or ideas?

Thanks

[JaganEllis]

Don't know why it's only on some clients, but what other tables is Crystal using? Try running Crystal's SQL on the DB to see if there's a join issue.
If a recordID really should be unique in the report then group on it and display in the group header/footer instead of the details section. This'll fix the symptom of any duplicate IDs, if not the cause of them.

[JRWarring]

I have checking the links and am fairly confident this is not the cause, but it is worth another look. However, I will try the grouping suggetion; it sounds promising. THANKS!