I also have this problem, on a new x86 install of Debian. My backtrace is identical.
This is presumably the cause: (gdb) print qt_x11Data->ptrXcursorLibraryLoadCursor $5 = (PtrXcursorLibraryLoadCursor) 0xffffffff I am unable to remove libxcursor1 for similar reasons. valgrind shows nothing odd except some problems with dlopen: ==8562== Conditional jump or move depends on uninitialised value(s) ==8562== at 0x4015213: (within /lib/ld-2.7.so) ==8562== by 0x4011108: (within /lib/ld-2.7.so) ==8562== by 0x4DA9C18: (within /lib/i686/cmov/libdl-2.7.so) ==8562== by 0x400D5D5: (within /lib/ld-2.7.so) ==8562== by 0x4DAA2BB: (within /lib/i686/cmov/libdl-2.7.so) ==8562== by 0x4DA9B50: dlopen (in /lib/i686/cmov/libdl-2.7.so) ==8562== by 0x4CB444B: QLibraryPrivate::load_sys() (qlibrary_unix.cpp:207) ==8562== by 0x4CAED53: QLibraryPrivate::load() (qlibrary.cpp:460) ==8562== by 0x4CAED8D: QLibrary::load() (qlibrary.cpp:722) ==8562== by 0x431A0C0: qt_init(QApplicationPrivate*, int, _XDisplay*, unsigned long, unsigned long) (qapplication_x11.cpp:1778) ==8562== by 0x42B5BC8: QApplicationPrivate::construct(_XDisplay*, unsigned long, unsigned long) (qapplication.cpp:740) ==8562== by 0x42B69B2: QApplication::QApplication(int&, char**, int) (qapplication.cpp:672) If I install libxcursor-dev then it doesn't crash here but elsewhere, with Xinerama. If I install libxinerama-dev then my application works without crashing. Can I help further? - Alyssa -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]