Yes, we're aware of the issue with the NVIDIA drivers and compatibility with DisplayLink. We're working on a fix for this, but due to the way the NVIDIA driver is interacting, it's not an easy change.
Downgrading the NVIDIA graphics driver to an earlier version should work, however they are pushing out the newer version on Windows update, so as soon as you downgrade, Windows 8 might be helpfully upgrading it again for you.
Wim
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