Hiding Activity Elements on the Project Planning Board

Hi All,

I have a couple of activity elements on a Project that I do not wish to see on the Project Planning Board and would like it to default whenever I go in so that these are hidden

In the PS IMG, against the Project Planning Board Profile, it is set so that Activity Elements are not to be displayed, yet whenever I go into the Planning Board via CJ20N they are still there, and I have to hide them manually. Is there any reason why the Planning Board Profile should be behaving this way or is there another setting that overrides this?

Any help will be greatly appreciated!