Got a little issue with my iPhone, maybe related to it not being sync'd to a iTunes i am not sure however here is the issue and such.

Tap iPod > Goes white then back to Home screen

Standby > Double tap Home > Click play, music plays can skip etc.
Unlock > Double tap Home > Get the little window in middle ... All controls work > Click iPod > Opens shows me song im playing, again all controls work.

BUT click the back arrow, and it goes back to Home, i cant basically get on the main screen!
Which is rather annoying

Ive tried resetting it, i dont want to reflash firmware however or Restore it!

US iPhone 1.1.4
Unlocked using ziPhone 2.6b, UK Network Orange.

Any idea's?