Off-Screen Buffering on Windows 8.1?

[PeterMitrano]

basic info: Windows 8.1 (GUEST) Ubuntu 15.04 (HOST) with Guest Additions and 23/3D acceleration enabled
I still can't get Off-screen frame buffering in OGRE to work. My program crashes, caused by:

Code: Select all

capabilities->hasCapability(Ogre::RSC_FBO);

So, does virtualbox have the support I need? I ran Dxdiag test, so I know the following:
Driver
Main Driver: vm3dum64.dll,vm3dum
Driver Model: WWDM 1.0
DirectDraw Acceleration: Enabled
Direct3D Acceleration: Enabled
AGP Texture Acceleration: Enabled

Any ideas?