With some playing around with shadow related preferences and theme options it looks like there are some rather oddinteractions buried in there.
Turn on soft shadows from Extras-'Themes & Colors' and then pick a window. In its halo menu pick 'drop shadow'-'shadow offset' and move the indicator around. If I move it to the ~20 pixels range I see a strange mix of soft and hard shadow not to mention some 'interesting' visuals if I try to get shadows to the left of the window.
tim -- tim Rowledge; tim@rowledge.org; http://www.rowledge.org/tim Fractured Idiom:- MERCI RIEN - Thanks for nothin'.