Click the "Alert me when ready" option when the little window comes up while it's thinking. That sends the report to the background to run.
It will display more lines that way, but I still think there's some upper size limit so it may not display everything. You can file a case with NS to try and increase that limit.
If none of that gets you the full report, you may be stuck having reports for parts of the alphabet, eg an A-E report, F-K report, etc. Clunky and slow as hell, but I've had to do that before.