the rendering of <h:outputLabel> seems to be different in JSF 1.2 and A4J:
JSF renders a "\n" after the opening html label tag - causing browsers (i.e. Firefox 2 + IE7) to show some white space before the text of the label. However, A4J responses don't have that linebreak and therefore, the layout is different.
Is this a known issue? How can I solve that problem?
Change your code (html layout) to avoid the difference. If you use FireFox, the Tidy Extension helps to find such kind of problem