All Views are not appearing in MM01/MM02 in Views selection screen???

Hi,

I have checked all required MM Views in the 'Maintain User Settings' node in IMG for the Screen Sequence Assigned in 'Assign Screen Sequences to User/Material Type/Transaction/Industry Sector' for a User. However, when I click on the Views button in MM01 while creating a new Materila Master, the system does not show all the views selected.

Can anyone tell how can I get the desired views. Is there any table where from I can know what and all views exist for selection, in case if these deleted by someone accidentally.

Thanks.