iTunes customizing issue

hello,everybody!

i am running macOSX 10.4.10 and shapeshift 2.5,gaia guikit,everything works fine but last night,this suddenly occurs to my itunes.

i've tried viate/ruler/bee3 themes,doesnt work. just because itunes updating to 7.5? it's annoying!

anybody can tell me how to fix this? thx!