Hi,
I am trying to install gazebo(a robot simulator) on my fedora 9.I came a problem which people said I had problem with my graphic card. They said I should change the driver or the card.How can I solve this problem without changing my card? Here is the output of backtrace of "gdb" with gazebo:

#0 0x036f8742 in ?? () from /usr/lib/dri/libdricore.so
#1 0x036f9000 in vbo_split_copy () from /usr/lib/dri/libdricore.so
#2 0x036f8552 in vbo_split_prims () from /usr/lib/dri/libdricore.so
#3 0x036fecee in _tnl_draw_prims () from /usr/lib/dri/libdricore.so
#4 0x036f7267 in ?? () from /usr/lib/dri/libdricore.so
#5 0x036f7457 in ?? () from /usr/lib/dri/libdricore.so
#6 0x00f834b8 in ?? () from /usr/lib/OGRE/RenderSystem_GL.so
#7 0x0284da11 in Ogre::SceneManager::renderSingleObject () from /usr/lib/libOgreMain-1.4.7.so
#8 0x028427d1 in Ogre::SceneManager::SceneMgrQueuedRenderableVisitor::visit () from /usr/lib/libOgreMain-1.4.7.so
#9 0x028113d4 in Ogre::QueuedRenderableCollection::acceptVisitorGrouped () from /usr/lib/libOgreMain-1.4.7.so
#10 0x02811a41 in Ogre::QueuedRenderableCollection::acceptVisitor () from /usr/lib/libOgreMain-1.4.7.so
#11 0x02844df1 in Ogre::SceneManager::renderObjects () from /usr/lib/libOgreMain-1.4.7.so
#12 0x02847c54 in Ogre::SceneManager::renderAdditiveStencilShadowedQueueGroupObjects () from /usr/lib/libOgreMain-1.4.7.so
#13 0x02844694 in Ogre::SceneManager::_renderQueueGroupObjects () from /usr/lib/libOgreMain-1.4.7.so
#14 0x02845685 in Ogre::SceneManager::renderVisibleObjectsDefaultSequence () from /usr/lib/libOgreMain-1.4.7.so
#15 0x0284581f in Ogre::SceneManager::_renderVisibleObjects () from /usr/lib/libOgreMain-1.4.7.so
#16 0x08aac13d in Ogre::TerrainSceneManager::_renderVisibleObjects () from /usr/lib/OGRE/Plugin_OctreeSceneManager.so
#17 0x02845dd5 in Ogre::SceneManager::_renderScene () from /usr/lib/libOgreMain-1.4.7.so
#18 0x08aac276 in Ogre::TerrainSceneManager::_renderScene () from /usr/lib/OGRE/Plugin_OctreeSceneManager.so
#19 0x026b955e in Ogre::Camera::_renderScene () from /usr/lib/libOgreMain-1.4.7.so
#20 0x028c1f80 in Ogre::Viewport::update () from /usr/lib/libOgreMain-1.4.7.so
#21 0x0281b58d in Ogre::RenderTarget::update () from /usr/lib/libOgreMain-1.4.7.so
#22 0x0281f8b9 in Ogre::RenderWindow::update () from /usr/lib/libOgreMain-1.4.7.so
#23 0x0281f83c in Ogre::RenderWindow::update () from /usr/lib/libOgreMain-1.4.7.so
#24 0x080cad00 in gazebo::OgreAdaptor::UpdateWindow (this=0x9f80f60, window=0xa4b4ce8, camera=0xa4b4b48) at server/rendering/OgreAdaptor.cc:456
#25 0x080e6586 in gazebo::UserCamera::Update (this=0xa4b4b48) at server/rendering/UserCamera.cc:86
#26 0x08104ee3 in gazebo::GLWindow::Update (this=0xa2918c0) at server/gui/GLWindow.cc:148
#27 0x0810a2ef in gazebo::GLFrame::Update (this=0x9fb1ec8) at server/gui/GLFrame.cc:134
#28 0x08107fa4 in gazebo::GLFrameManager::Update (this=0x9fb1aa0) at server/gui/GLFrameManager.cc:151
#29 0x081039a4 in gazebo::Gui::Update (this=0x9fa8d88) at server/gui/Gui.cc:113
#30 0x08128944 in gazebo::Simulator::MainLoop (this=0x9f78560) at server/Simulator.cc:289
#31 0x0810db36 in main (argc=Cannot access memory at address 0xc
) at server/main.cc:293

Thanks...