just Gnome, no Windowmaker

I was experiencing some new settings and I think I caused some disturbances on my desktop. I used to access my programs through the default windows manager, now I'm confused because I think there are two desktop open at the same time. Take a look at this: http://mywebpage.netscape.com/Adagilson/gnomedesktop.png I just want to remove these grey icons (it includes the clip icon at the top) over my default task bar (the one with gnome footstep icon). thanks for any help a. -- Adagilson Batista Bispo da Silva Bibliotecário FIOCRUZ-Centro de Pesquisa Aggeu Magalhães Fone 81 3302-6520