After getting bored with stable Edgy desktop, I start searching for excitement by upgrade my Ubuntu desktop to Feisty Fawn. It's just Herd 5, buggy, unstable and not for ordinary users. Anyway, as state above, I just search for excitement.
Normal alternate installation works fine except my integrated Nvidia GF6150 has distortion screen with generic "nv" driver. Installing official Nvidia Linux driver (via this guide) seems to work well except the cursor is missing. No cursor is displayed but I still can click anywhere on screen.