Version:            (using KDE 4.1.2)
OS:                Linux
Installed from:    Ubuntu Packages

I use Nvidia Geforce 8400 Gs and Kubuntu 8.10. After I install graphic drivers 177 or 173, Kmix crashes and write me this error:

Application: KMix (kmix), signal SIGABRT
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[Thread debugging using libthread_db enabled]
[New Thread 0xb654e8d0 (LWP 5615)]
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[KCrash handler]
#6  0xb8081430 in __kernel_vsyscall ()
#7  0xb7ed6880 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb7ed8248 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb7693795 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb7693872 in qFatal () from /usr/lib/libQtCore.so.4
#11 0xb7693915 in qt_assert () from /usr/lib/libQtCore.so.4
#12 0xb7aa357a in ?? () from /usr/lib/libsolid.so.4
#13 0xb7aa387f in ?? () from /usr/lib/libsolid.so.4
#14 0xb77a0a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0xb77a17e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb7ab5883 in ?? () from /usr/lib/libsolid.so.4
#17 0xb7adb49e in ?? () from /usr/lib/libsolid.so.4
#18 0xb7adb58a in ?? () from /usr/lib/libsolid.so.4
#19 0xb75f826e in ?? () from /usr/lib/libQtDBus.so.4
#20 0xb75ff627 in ?? () from /usr/lib/libQtDBus.so.4
#21 0xb779b771 in QObject::event () from /usr/lib/libQtCore.so.4
#22 0xb6dc98ec in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#23 0xb6dd176e in QApplication::notify () from /usr/lib/libQtGui.so.4
#24 0xb7d0d72d in KApplication::notify () from /usr/lib/libkdeui.so.5
#25 0xb778be61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#26 0xb778cae5 in QCoreApplicationPrivate::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#27 0xb778ccdd in QCoreApplication::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#28 0xb77b682f in ?? () from /usr/lib/libQtCore.so.4
#29 0xb67716f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#30 0xb6774da3 in ?? () from /usr/lib/libglib-2.0.so.0
#31 0xb6774f61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#32 0xb77b6478 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#33 0xb6e63ee5 in ?? () from /usr/lib/libQtGui.so.4
#34 0xb778a52a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#35 0xb778a6ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#36 0xb778cda5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#37 0xb6dc9767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#38 0xb801babb in kdemain () from /usr/lib/libkdeinit4_kmix.so
#39 0x080485a2 in _start ()
#0  0xb8081430 in __kernel_vsyscall ()

After that I can't save manual resolution in nvidia-settings manager. It write me error: Segmentation Fault. 

Another problem is when I try eject cd or dvd. It just want to eject it.