diff -r 3b1da2848fc7 -r d3bac044e0f0 src/gui/widgets/qlinecontrol_p.h
--- a/src/gui/widgets/qlinecontrol_p.h	Fri Feb 19 23:40:16 2010 +0200
+++ b/src/gui/widgets/qlinecontrol_p.h	Fri Mar 12 15:46:37 2010 +0200
@@ -549,7 +549,10 @@
 
 inline qreal QLineControl::cursorToX() const
 {
-    return cursorToX(m_cursor);
+    int cursor = m_cursor;
+    if (m_preeditCursor != -1)
+        cursor += m_preeditCursor;
+    return cursorToX(cursor);
 }
 
 inline bool QLineControl::isReadOnly() const