Comment # 9 on bug 1146308 from Daniel Pecka

Hello Larry,

I can reproduce it and guys here (https://www.virtualbox.org/ticket/18802)

>> Great! Somebody finally filed a bug report about this, I have about a gazillion posts in the forums that need to be tied to a ticket. <<

so I'd assume it really exists ..

I have windows 7 + stock tools installed .. 3D support enabled, attaching my
machine configuration ...

It needs to be enabled while you're installing in guest a vbox additions,
there's a checkbox, see my screenshot (attached)

regards, dan