C4D noob questions: Motion Blur and GLobal Lighting

Hi guys

I have created a nice flag animation from a tutorial using a plane & clothilde wrapped in a nurbs and have encountered 2 little problems:

Motion Blur
I would like to add some motion blur to make the animation more realistic and have tried adding a Motion blur tag to the plane and activating Objecz Motion Blur in render settings but to avail... Theres no visible blurring in the pattern or at the flag's edges :(

Any ideas what im doing wrong?


Global Lighting
My renders seem to be light from bottom left instead of top left - how do i change that? :S



Thanks in advance people