Hey guys, I have a quick question. I just bought a new PL25, and it rattles. I'm not talking about the rattlesnake issue. I've heard that, I know what it sounds like. But the lens sounds like something is rattling around internally when powered on or off (even when detached from the body). It's not too loud, I have to generally hold it up to my ear to hear it. But none of my other lenses make similar noises. The AF works fine, seems accurate and speedy, the lens produces nice images, but if this isn't normal I'm concerned about its reliability down the road. Is this a common noise for this lens? Any other PL25 owners out there have this? Please chime in either way with your input.