i have the iphone 4 on o2 and this morning my facebook app is not displaying as it should when clicking on news feed i find none of the pictures come up next to the persons name and if someone uploads a photo it just shows the word photo instead of showing the picture

i deleted and re-installed it but still have the same problem
any one have this or no how to fix it

firmware is 4.2.1

Working for me. I'm on 4.3.1 though

Just Uninstall And Install Again