Just to add to the discussion - if I am running VBox 4.3.26 but install Guest Additions 4.3.12 problems go away. Any newer version of Guest Additions and problems return, so something must be right in that GA version.
Just to add to the discussion - if I am running VBox 4.3.26 but install Guest Additions 4.3.12 problems go away. Any newer version of Guest Additions and problems return, so something must be right in that GA version.