Index: /trunk/src/VBox/Frontends/VBoxManage/VBoxManageDisk.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VBoxManage/VBoxManageDisk.cpp	(revision 56920)
+++ /trunk/src/VBox/Frontends/VBoxManage/VBoxManageDisk.cpp	(revision 56921)
@@ -697,6 +697,8 @@
             else if (rc == VBOX_E_NOT_SUPPORTED)
                 RTMsgError("Resize medium operation for this format is not implemented yet!");
+            else if (!pProgress.isNull())
+                CHECK_PROGRESS_ERROR(pProgress, ("Failed to resize medium"));
             else
-                CHECK_PROGRESS_ERROR(pProgress, ("Failed to resize medium"));
+                RTMsgError("Failed to resize medium!");
         }
     }