User's permissions

I don't know how to set that my members cannot delete their own messages.
When I create a forum I give them only rights to view, right or edit their own messages, but when I go to my panel to see the general permissions for each forum, that option for deleting post is greened for members.
So now I don't know if they can delete their posts or not?!
Any helpful advice?

Are you sure yu're in the advanced mode of the permissions settings? (this isn't linked with the advanced/simple mode of te admin panel )

Caihlem

Yes I'm sure. I am always in advanced mode.

Normally if in the permission the Delete field is ticked they should be able to delete their posts though

If you can please write me the exact pathway to view those permissions (about deleting and editing post) and uncheck it, cause I simply cannot find it.

As I was perfectly sure that I didn't give them permission to delete their own messages when I created specific forums, but they still could do that, I started to look for a solution and I have found out few minutes ago what was the problem.
We have two options: to create a forum, and to create a category.

I have created few forums without creating a category for which those forums will be attached.
Then I created a category for those forums, attached those forums for the category and only than I could find those specific permission, which I must assign to whole category in order to prevent my users to delete their messages in forums that belongs to that category.
My conclusion is next:
If I have a forum without a category I cannot manage that forum as I want, but if I have both, category and forum attached to that category I can manage permmisions as I want.
Am I right, or am I wrond?
P.S. Sorry about this long message but it can be helpfull for someone .

Normally youshould be able to manag your forum as wanted though

The prblem might coe from the cateogry's old permissions, as they tend to override the forum's permissions