Hey ar_woo, I just saw your post about the disastrous experience you had with your new MP4 player (I thought rather than replying you on that other thread, will reply here, at least this thread was created by you, so i believe you wouldn't mind too much if i reply here
).
So did you take your MP4 player back to the place where you bought it from (or give the shop a call) to either ask them about the problems you are having or ask for a refund or lodge a complaint? Hope they can do something about it! Sorry to hear about that. It's the most annoying thing if we buy a new "toy" or thing and not only it's not doing what it's supposed to do, but also seems to be affecting other things that were working alright 
(By the way, if you wouldn't mind, could you please tell me the brand & model of that MP4 that you bought, so that if one day I decide to get one, I will try not to get the same brand/model? 
It's ok if you don't want to tell me or if you like you can PM me, thanks!)
