diff -r 3b1da2848fc7 -r d3bac044e0f0 src/gui/kernel/qwidget.cpp
--- a/src/gui/kernel/qwidget.cpp	Fri Feb 19 23:40:16 2010 +0200
+++ b/src/gui/kernel/qwidget.cpp	Fri Mar 12 15:46:37 2010 +0200
@@ -2026,6 +2026,14 @@
     }
 #endif
 
+#ifdef Q_WS_S60
+    if (q->windowType() == Qt::Dialog && q->testAttribute(Qt::WA_TranslucentBackground)
+                && S60->avkonComponentsSupportTransparency) {
+        setOpaque(false);
+        return;
+    }
+#endif
+
     if (q->testAttribute(Qt::WA_OpaquePaintEvent) || q->testAttribute(Qt::WA_PaintOnScreen)) {
         setOpaque(true);
         return;
@@ -3344,7 +3352,7 @@
     \note Setting the size to \c{QSize(0, 0)} will cause the widget to not
     appear on screen. This also applies to windows.
 
-    \sa pos, geometry, minimumSize, maximumSize, resizeEvent()
+    \sa pos, geometry, minimumSize, maximumSize, resizeEvent(), adjustSize()
 */
 
 /*!