I purchased an S3 right after christmas. I previously had a Canon A80 which took great pictures but I wanted a better zoom. I am having two issues with the S3. One is grain in my pictures, and the other is blurriness despite having IS on. I am trying to take pictures of a high school play. Sometimes I get great pictures and others I get are blurry despite little to no movement on stage. Can anyone give me some pointers?