So i found the solution the screen being cutoff. Go into your polboot.exe properties and check the box that says disable dpi scaling under the compatibility tab. I also did this on ashita exe just to be safe but i dont think it matters. The game should be a nice fullscreen now. Im also running it in windows 7 compatibility mode on windows 8.1 for reference.
I have NOT found a solution to my GPU NOT wanting to run with this game, im still stuck with 512mb of onboard and my 2gbddr5 nvidia 960m sitting dormant during gameplay. I dont think there is a solution for this.
After months of fighting this problem I found this post from NVIDIA. Apparently not working is 'working as intended'
http://nvidia.custhelp.com/app/answers/ ... nly-run-onLast nvidia GPU laptop I buy...
Try this OP, particularly the Ashita settings. The pol boot trick didn't do anything for me but doing this for the ashita.exe file did. Hope this helps.