Hi Nokman -
I was finally able to get my hands on a similar computer and was able to replicate your issue, I have entered a bug report as UE-17196. I have found if you go into your NVidia control panel and in Global Settings tell your CPU to always use the High Performance Graphics Card, meaning the Nvidia Card, that should eliminate the problem , but will eat the battery life of your laptop, so you may want to bear with us as we work to a solution.
Thank You
Eric Ketchum