see if you can make your monitor resolution bigger? or attach a second, larger monitor?
if not, you will have to reset the WE palette scheme back to the default out-of-the-box 'standard'.
as an aside - please can you put your machine specs/archicad version in your signature file here? you will find people able to help you better when they know just what you're using . . .
b e n f r o s t
b f [a t ] p l a n b a r c h i t e c t u r e [d o t] n z
archicad | sketchup! | coffeecup