I too have similar problem.

dump tran sometimes fails with message indicating that a non logged operation is performed.

However, unlike your case, select into/bulk copy is diabled for this database.

But still it indicates that non logged operation is done ?

Can anyone tell me what else could be the non logged operation that could have been done without select into/buk copy option enabled ?
Is there anyway for me to audit or check who/what has been done in this database ?