>Just weird thing happened with one of my report. If I try to do MODI REPORT MtdReport or use MtdReport.FRX I got "File access is denied". AFAIK nobody is using this report but me.

Is this sitting on a Windows server share? If so, you can go into the Computer Management MMC and check who has a open. I've long since forgotten how to do this on Novell. :-)