I think i am running into bug 20270:

"Outlook users get access is denied (or similar) errors"

The bug report states the cifs.lvl2_oplocks_cap should be turned off in order to fix the problem. I have about to 8000 CIFS users and only a handful have had this kind of problem. What are the ramifications to my other 7990 users if I turn off level 2 oplocks to fix the 10 users that are having the problem?

Should i just ship the 10 problem users to an NT server?

Looking for answers from those in the know. :-)

Thanks, Graham