We got an annoying little [bug] popping up on the tracker with regards to OEM installs. It appears that it works in some virtual machine environments, but not in others. As you can see in the bug, further information is needed before we can get to the bottom of THAT problem. If you could test across as many images as you can get your hands on and include the results, that would be appreciated.
More importantly, though, I want confirmation that this does not affect real hardware. I've had a number of reports suggesting it doesn't, but it really needs to be tested over a wide variety of systems, both new and old, with different video cards, different architectures, different flavors, different versions. If it does not affect real hardware, this should be of limited concern.