http://bugs.winehq.org/show_bug.cgi?id=12213
--- Comment #4 from no one mojedokumenty@o2.pl 2008-08-21 09:24:22 --- Some background on the bug:
It appears that switching the options in tree view in the properties of WinUAE does not work either. However, the problem persists only when in winecfg a theme is set. When no theme is used, everything is fine.
On my setup with a recent wine version 1.1.2, the buttons work fine no matter whether the theme is used or not. The bug seems to involve only the tree view w/ a theme.