OK, if you are using JustDave's IIP or SideBar Pal..... I had first thought of modifing the pals to hide subjects and such of restricted forums.... but with cached results that's not possible.
So it's best to exclude password protected forums from any pal boxes
In index.php or sidebarpal.php find this:
<br /> $query = "<br /> SELECT Bo_Keyword,Bo_Title,Bo_Write_Perm,Bo_Reply_Perm,Bo_Read_Perm<br /> FROM {$config['tbprefix']}Boards<br /> WHERE Bo_Keyword != ''<br /> $andexclude<br /> $groupquery<br /> $catonly<br /> ";<br />
Change to this:
<br /> $query = "<br /> SELECT Bo_Keyword,Bo_Title,Bo_Write_Perm,Bo_Reply_Perm,Bo_Read_Perm<br /> FROM {$config['tbprefix']}Boards<br /> WHERE Bo_Keyword != ''<br /> AND Bo_Password = ''<br /> $andexclude<br /> $groupquery<br /> $catonly<br /> ";<br />