https://bugs.freedesktop.org/show_bug.cgi?id=97059
--- Comment #4 from dave eunbolt@gmail.com --- I have always had this issue with this card and blender[I normally keep up to date with blenders releases](this is only only application I have noticed it on.) issue affects blender 2.60a also. I can try more if you would like.
setting the variable LIBGL_DRI3_DISABLE=1 seems to make the issue go away.