"probably required kernel module "vboxvideo" is missing in the Live DVD"
would appear to be the case, from the Xorg log
[ 225.827] (II) LoadModule: "vboxvideo" [ 225.827] (WW) Warning, couldn't open module vboxvideo [ 225.827] (II) UnloadModule: "vboxvideo" [ 225.827] (II) Unloading vboxvideo [ 225.827] (EE) Failed to load module "vboxvideo" (module does not exist, 0)
"probably required kernel module "vboxvideo" is missing in the Live DVD"
would appear to be the case, from the Xorg log
[ 225.827] (II) LoadModule: "vboxvideo"
[ 225.827] (WW) Warning, couldn't open module vboxvideo
[ 225.827] (II) UnloadModule: "vboxvideo"
[ 225.827] (II) Unloading vboxvideo
[ 225.827] (EE) Failed to load module "vboxvideo" (module does not exist, 0)