I had no problem with the card for a while, but here's what happens:
-Downloads get stuck (downloads from browser, google play, installed apps stop midway)
-When you try to delete/stop downloads, the downloads stay in the notification bar
-When the above scenario has started, you wont be able to access games with files in the sd card
-Shutting down the phone would get you stuck in the powering off/restarting screen
-Tried reformatting phone a couple of times
-Tried reformatting SD card a couple of times (bot quick format and plain format)
-Tried checking for SD card errors a couple of times
-Tried recording from FM Radio, when I stopped the recording, it hanged just when it was about to save, then showed same symptoms as above
I have a hunch that the problem lies with writing data into the SD Card.
So there are the symptoms. I tried googling it but I just cant seem to find a similar problem. Thanks very much!