Applications using Clutter freeze with warning "pick() of an actor is not correctly ...... or ..... error in the glReadPixels() > implementation of the GL driver"

[teabag]

System configuration:
Virtual Box 4.0.4
Host: Ubuntu 10.04
Guest: Meego 1.1 netbook - 2.6.35.3-13.6-netbook

XFCE Desktop Environment
Clutter version 1.4

After installing the VirtualBox Guest additions, and enabling 3D acceleration, we get the below message on launching a clutter based application:

Warning:
launcher:929): Clutter-WARNING **: The required ID of 4194304 does not refer to
an existing actor; this usually implies that the pick() of an actor is not
correctly  implemented or that there is an error in the glReadPixels()
implementation of the GL driver.

Observed behaviour: The observed effect is that the clutter stage freezes. Occasionally the clutter application works properly without freezing or throwing up the Clutter-Warning.

(Also observed in VirtualBox 4.0 version)