Big problem whit this images, help plese

[acg3fly]

Hi, i have a problem whit some images in the explorer windown as well in other windows, i don´t know why in some themes that i apply some images are missing, in the picture below i show you what images are missing, but in other themes those imagen are displayed normaly, as well i show you in the picture below, i´m modifying a theme and some images are missing too, i don´t know what happens and i don´t know what to do, please somebody can help me??