listBox dont scroll

[highfredo]

I have a problem with the scrolling listbox in S60v5,
when I move the listBox with the fingers (without the pad) the screen dont refresh and I always see the same items:

this is code I use:

import appuifw, e32
from key_codes import *
 
 
app_lock = e32.Ao_lock()
#Define the exit function 
def quit():
	app_lock.signal()
appuifw.app.exit_key_handler = quit
 
#The list of entries
items = [u"1", u"2", u"3", u"4", u"4", u"5", u"6", u"7", u"8", u"9", u"10", u"11", u"12", u"13", u"4", u"15"]  #long list
 
#Define the function for the arrow keys
def move(direction):
	if direction == 'right':
		if lb.current() == len(items) - 1:
			lb.set_list(items, 0)
		else:
			lb.set_list(items, lb.current() + 1)
	elif direction == 'left':
		if lb.current() == 0:
			lb.set_list(items, len(items) - 1)
		else:
			lb.set_list(items, lb.current() - 1)
 
#Create an instance of Listbox and set it as the application's body
lb = appuifw.Listbox(items, lambda:None)
appuifw.app.body = lb
 
#Bind the keys
lb.bind(EKeyRightArrow, lambda:move('right'))
lb.bind(EKeyLeftArrow, lambda:move('left'))
 
app_lock.wait()