How to apply the effects of weight painting instantly? I am having problems when I weight paint. I can paint and the color shows as expected, but the corresponding mesh movement only happens after click on an item in the tool shelf,  eg. belly How can I apply the movement instantly?

cheers jan
Select your mesh and in the properites panel, modifiers tab, enable thoose little two buttons on the armature modifiers: in this way you will be able to see the effect of all weight paint strokes in real time.