Since rebooting always makes it work correctly, I suspect there's some software glitch. Before I do a factory reset I wanted to see if booting into safe mode might fix this. How does one boot into Safe Mode?
Tried keeping volume down key depressed during a reboot but did not work.
Any other ideas to fix this issue? I've ~280 MB RAM free, 33 MB Internal storage free and 250 MB free on the SD card.
PS. I also tried:
(a) Shutting down. And then holding menu key during start
(b) Shutting down. And then pressing both Volume UP and Volume DOWN keys during the start.