I bought an HS10 yesterday, and I've noticed a vague green splodge a few inches across that appears on dark backgrounds. When I change focus one way it becomes clearer, so I'm assuming it's a dust blob. I've also noticed some vertical banding on light backgrounds. Does anyone know if these issues are covered by the warranty? Maybe I should just ask for another one. Another thing is that with Sky Digital, I get very pronounced hoizontal black lines on red areas. Maybe that's a problem with my (Sony) Digibox. Has anyone else noticed that?