When running Debian 7 on virtual box, opengl windows are not refreshed during SwapBuffers call (ex. glutSwapBuffers). The window is only refreshed when resizing. I tried both my 3D OpenGL engine, and the simple SnowMans demo from 3D lighthouse. (to run the demo you need to "sudo apt-get install" few packages "freeglut3 freeglut3-dev")
Host : Windows Vista
Guest: Debian 7
the bug is present both with 3D acceleration enabled and with 3D acceleration disabled.
EDIT:
Anyone else can confirm that? I readed tickets of similiar bugs dated few years ago, the bug was fixed, but seems that now is present again.