I'm loving this machine, but one day in and its stuck in "dedicated graphics" mode and won't use the Intel HD 4000. Even when all apps are closed (and the battery has been calibrated, etc). I've called Apple support and that didn't resolve it so I've made an appointment for tomorrow afternoon at the Apple Store. Anyone else finding their new computer only uses the Nvidia card? I believe there was a similar issue in a previous model. I don't want to rely on some app that requires me to control the GPUs all the time. It chews through the battery pretty fast in this mode, so kind of annoying in that regard.