You want to ONLY use the nVidia, and make sure (from nVidia) that you have a driver that is certified for Win8
Dual laptop video problems
-Use BIOS http://forums.adobe.com/thread/1019004?tstart=0
-link to why http://forums.adobe.com/message/4685328
thanks a lot. Got the card drivers before, but found that I had switched off GPU and only accelerator was working (lenovo power manager), I'm stupid that I haven't recognized it befor setting w8 to default.
Once again thank you for your help.
I just want to share since I also experienced this issue (win 8). In any case, on my laptop I had disabled the intel adapter to get the Program Monitor to work. Just how John T Smith said, it was a matter of forcing Premiere into using the NVIDIA card. There is probably an easier way, but that is my current solution.
There is probably an easier way
Nope. Disabling onboard video in the BIOS is pretty much the only way. Or at least, it is the best way.)