Recently out of the blue, when I wake up the phone, I've started seeing the external SD card icon in the notifications bar as if it's being prepared. Since I've started noticing this, sometimes the camera just won't activate - I tap the camera and it is blank for several seconds, then sometimes it is active, sometimes it never comes on. The camera is set to record to the external SD. This is obviously a big problem. If I set the camera to record to the internal storage, the problem goes away and the camera activates instantly. Can someone suggest a fix? Rebooting is no help, but maybe removing and reinserting the card? Not sure what the right procedure is.