OK, here's something to try: Looking at the specs of your machine in some more detail, am I right in assuming that it actually has *two* switchable graphics cards? One would be the the processor-integrated GPU (Intel HD Graphics; as detected by DxDiag), the other one would probably be a discrete nVidia GPU. nVidia's "Optimus" driver will try to automatically decide which GPU to use in a given situation -- but it does a notoriously bad job at that, potentially leading to all sorts of funky issues and crashes. So try
- configure the Optimus driver to always use e.g. the discrete, high-performance nVidia GPU for Inquisit (can be done via the nVidia control panel)
or
- completely disable one of the GPUa / Optimus switching via the system's BIOS
and let me know if this fixes the issue. In addition, you'll also want to make sure you've got the latest drivers for your nVidia / Optimus adapter.
Thanks,
~Dave