i have the same pink colors in my toolbar:
http://retrobolt.uw.hu/ibbug.jpg
and i have another problem with ib2.4: cannot open the settings window. when i try it, the screen flashes once, mui4 fonts changed to topaz and some gfx elements also changed to gadtools (can be seen on the picture under the link), and the setting window doesnt appear at all (ib settings not mui) besides these two issues everything else works as they should be...
DEAD pegII/G4@1000.1gb ram.radeon 9200pro
240 gigz hd.nec dvdrw.MorphOS 2.4 DEAD
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amiga1200T.blizzardppc@180/040@25.96megz ram
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zx.spectrum@3.5