[Wine] Graphics problem with Wine 1.2rc7 and Shareaza 2.5.3

[notaspambot]

I'm running Shareaza 2.5.3 on MacOS X 10.6.4 via Mike Kronenberg's OS X build of Wine 1.2rc2. In this version, the background of Shareaza's splash screen is black (but the status message texts on the splash screen are displayed correctly) and the menu icons are also drawn garbled (squares of coloured dots, actually). Both were drawn correctly in Wine 1.1.x. Has anybody else experienced this problem, does it occur on other host OSs as well?