https://bugs.winehq.org/show_bug.cgi?id=52006
--- Comment #4 from Josesk Volpe joseskvolpe@gmail.com --- I noticed you're using JDK 6u21, not JDK 6u23 So i created a new prefix and tried to reproduce this bug with JDK 6u21. ¡The emulator UI could open with theming on! So looks like it's JDK 6u23 that's having problems with uxtheme
¿Can you reproduce this bug by using JDK 6u23 instead of 6u21?