Q 1: I'm currently working with Photoshop CS, and I'm having trouble with the brush shape dynamics.

Every time I want to apply pen pressure, pen tilt or stylus wheel, a little exclamation mark inside a triangle appears (like this: ) beside the drop down menu and the option wont work. (meaning there is no simulated pen pressure when there should be.)



This is EXTREMELY frustrating and any explanation and/or help would be very much appreciated.

Q 2: I would like to upgrade to a newer version of photoshop, but I'm not sure which one to choose. I think I would be happy with CS2, but I wanted another opinion. Is it worth it to get CS3? What are the benefits of CS3 vs. CS2, if any?

Thanks.