I realize this question has been asked previously. However, I do not have an NVidia graphics card, I have an ATI Radeon graphics card.
When I try to log into Ubuntu regularly, it logs into 2D mode every time. Also when I log into the Gnome shell it reverts back to an older version. I tried
unity --reset and now I have no window borders, and can't switch between windows or resize, and am still in Unity 2D.
How can I fix this?