I'm also experiencing this bug, with exactly the same graphics card and symptoms (random unrecoverable black screen upon opening certain websites in Firefox or Chrome). First noticed when attempting to open http://www.google.com/chrome through Firefox also.
I'm also experiencing this bug, with exactly the same graphics card and symptoms (random unrecoverable black screen upon opening certain websites in Firefox or Chrome). First noticed when attempting to open http:// www.google. com/chrome through Firefox also.