Safari 5.1 (Snow Leopard) seems to have disabled the combination of fn + arrow buttons for navigation (page up, page down, top, bottom). I know the same can be achieved with option + top, down and command + top, down, respectively but I find it rather impractical to use.
Are there any tips already how to reactivate this or do I even have to fear that fn + arrow behaviour has been completely dropped in Lion?
Edit: Added Lion explicitly to the tags since they seemed to have dropped the Home and End behaviour of fn + arrow there as well in many applications.
