Vista - Can't remove folders from windows gallery or live gallery

I want to remove some folders from both windows gallery and live gallery. I
got both programs pre-installed when i got my new computer with vista. When
I right click on a folder in either program i have no option to remove like
it says to do in the help section. I have tried all the folders just to make
sure. I can add but not remove. I have a similar program in MS Digital
Images Library and have no problem removing folders there but I like some of
the features better in the window galleries and would use them more if i can
figure out how to remove. For now I go back and forth. Is there some reason
this option is not available? am I missing something?