NVIDIA releases new driver fix for Optimus notebooks

Today NVIDIA released a new driver for Optimus notebooks, version 189.42. 
Intel's latest (March) IGP driver is not compatible with Optimus. NVIDIA 
has a driver fix which is being posted today for anyone who wants to use 
Intel's latest driver.

Previous Intel drivers work fine. NVIDIA assures us that they are working 
with Intel to ensure that this issue does not happen again. In addition 
to the Intel driver solution, this new NVIDIA Optimus driver includes 
improved merging of Optimus profiles and additional performance enhancements.

We recommend that all Optimus users move to this driver immediately.  You can 
download the new drivers here:

http://www.nvidia.com/object/optimus_win7_x32_notebook_189.42.html

http://www.nvidia.com/object/optimus_win7_x64_notebook_189.42.html

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