Hey, all! So I recently bought a Sony a390 with the standard kit lens. I've noticed, however, in the bottom right corner of the screen, there is a digital green dot that appears when the camera is focused and ready to take a picture. However, sometimes when my camera is really close up the the subject e.g. right next to the picture frame I'm photographing, the green dot will appear and start FLASHING and the lens will not focus, and when I click the shutter, the camera will not take the picture. This happens both in Manual focus and Auto focus. It's strange, and I'm pretty sure it's not a technical glitch. I've tried Googling it, but I haven't found anything, nor does the very short User's Manual say anything. Does anyone know anything about this? Let me know ASAP. Thanks!