It was the latter. I used the brute-force method. Saved as XML, opened in UltraEdit text editor, and did a search to find the appropriate lines that...

Did as you suggested, and problem was solved, just as you said.

Thanks so much for help!.

Gail, thanks for prompt response.

I think you are right about IO stack and not hard drive. Customer created a test DB from backup of prod DB made...