After upgrading to 4.03 some computer the balloons/tooltips have disappeared in Internet Explorer 6.0 when hover over icons. User reported problem after upgrade. User said working before upgrade. I don't think it related. It is not just on Zimbra Email, balloons/tooltips do not show up on other webpage’s too. In Firefox balloons show up fine on same computer. Does anyone know how to get balloons/tooltips to show back up?