I recently purchased a used LG P509 from an online source, replacing my old worn out phone. The phone works perfectly, the SD card is read and after several updates most of my apps are back in place. The only issue is that apps stored on the SD card are not reading at all. I can see them by hooking the phone up to my computer, but with the exception of the gallery, no apps are accessible on the phone. The only thing I can think of is there is a difference in firmware (which I upgraded). Any ideas?