Hi All

Ive owned my Galaxy s2 for about 2 months now, and it has started acting a bit strange at times.

1) When plugged in to charge, it takes a minute or two to recognise that it is charging. Also when not charging it flashes on and says it is, when it clearly isnt.
2) It randomly initialises Samsung Kies, as if it was plugged in to a PC.
3) It turns itself on to car mode, and later turns it back off.

Has anyone else experienced these problems? Is there a quick fix, or does it need to be fixed by the manufacturer?