Some users think that the graphics are too large, but in fact the button labels are eating so much space. If you're using topaz/8 as the label font, then some of the buttons become invisible on a 640 pixel wide screen. Solution: select 'Settings/MUI' and go to the 'Toolbar' section. Now you can either choose a thinner font (helvetica/9 works well) or switch off the labels completely ('image only' mode).