Timeout/ Hang When Executing Crystal Report with Oracle View

[ihda]

I'm producing a Crystal report (8.5) (on a Win2000 platform) using an Oracle 9i view. The view selects data from 13 tables and contains 40 fields. If I select a small number of fields for the Crystal report, the report executes fine. If I select all or most of the fields, Crystal hangs. (A review of the task list displays 'not responding'). Is there a registry entry I need to update?

Thank you