Index: /trunk/src/VBox/Frontends/VirtualBox/src/helpbrowser/UIHelpViewer.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/helpbrowser/UIHelpViewer.cpp	(revision 88515)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/helpbrowser/UIHelpViewer.cpp	(revision 88516)
@@ -955,4 +955,7 @@
     if (!cursor.charFormat().isImageFormat())
         return;
+    /* Dont zoom into image if mouse button released after a mouse drag: */
+    if (textCursor().hasSelection())
+        return;
 
     QTextImageFormat imageFormat = cursor.charFormat().toImageFormat();