Same d3d fuzziness problem here. BUT... opengl didn´t work either. All around the main tab (menus, mini-map, etc.) looks good but in the main editor the text isn't rendered. You can see the text for a fraction of a second and latter it disappear. With some themes, the actual line is visible, not with most of them. If you select some lines, the selection appears (no text) in different colour and can see indentation and tabulators, nothing else.
Using Windows 7 x64, Ati 5770.