). Anyway the video issue, which occurs no matter which VB screen mode I choose or which video resolution I choose in the guest OS is a black stripe down the right side of the VB window and Windows 8 has a horizontal scroll bar in it (not the VB window) which scrolls just about as far as the black stripe is wide. BTW changing the VB screen mode causes portions of the VM's screen to disappear - even clikcing in the invisible portion brings the host window behind to focus. My current VBox version is 4.2.16 r86992. In the System Settings | Display I have both 3D Acceleration and 2D Acceleration checked. The mouse issue I just noticed, but it may have been happening for a longer period of time. The click point is not at the mouse pointer; it is shifted left a small distance (possibly the same distance as the black stripe's width). I tried disabling and enabling the mouse pointer intrgration - this gave me two mouse pointers, the actual one and a "shadow" pointer which was at the actual click point on the guest! Disabling and re-enabling again made this "feature" go away, but the problem still persists.