Happly playing about with my new powerbook, bought up the dock (normally hidden) and there was no finder icon, let the dock hide again, and there it was... on the desktop! 
It doesn't respond to clicks, is always on the top,
Everything else is running as normal
Not come across this before, haven't try'd fixing it yet
It doesn't respond to clicks, is always on the top,
Everything else is running as normal
Not come across this before, haven't try'd fixing it yet