I am getting strange "artifacts" in 3D games such as Heroes of Newerth.
I have Ubuntu Natty, I am not running the propriety graphics driver as I am using GNOME3 and the driver does not work well.
I have a Dell Inspiron 1545.
The artifacts are almost tolerable, but the game quite often also crashes, with no warning or error.
How can I fix this, or (if it's a bug) how do I report this?