I'm having the same issue within feisty,
Initializing gnome-mount extension
(nautilus:8817): GnomeUI-CRITICAL **: size_prepared_cb: assertion `width > 0 &&
height > 0' failed
*** glibc detected *** nautilus: double free or corruption (!prev): 0x0a298498
***
Either the file given above or some
"Please Note: If you are unable to use any 3d applications and get this
error instead:
FGLTexMgr: open of shared memory object failed (Function not implemented)
__FGLTexMgrCreateObject: __FGLTexMgrSHMmalloc failed!!!
fglX11AllocateManagedSurface: __FGLTexMgrCreateObject failed!!
FGLTexMgr: open o