When I connect my Incredible to my PC as a Disk Drive I get two drives control panel. I have F: and G: along with my PC's internal drives. I have been adding pictures and music to both but they both still seem to be saving to my phone's internal memory and not the SD card. How do I save to the SD card instead? Is saving to one better than the other? Will too much storage on the internal memory slow the phone operation down? Thanks.