"Device emulation" ?
I ran into a similar problem when I tried to run PPS CAL tasks on a dual-GPU laptop. With a Mac it's easy, albeit slow; the one in question for me was an HP Pavilion dv6 with a similar Intel chip and an ATi HD5450. Once the GMA was disabled, the computer freaked out. It stopped recognizing that it had a graphics card.
So with your situation, BOINC seems to be recognizing your GPU, right?
As it's fairly new technology, I wouldn't expect BOINC to work perfectly with it just yet. Hence you see "CAL ATi Unknown" on some host pages. OPTIMUS is pretty recent, no? The problems I described were also on a Win7 laptop, but running ATi.
Also, unrelated, but that's a heck of a fast mobile i3!
I still don't quite understand what it means when saying "emulator." I presume you have installed every piece of the CUDA toolkit and all the drivers correctly...so my guess at this juncture is BOINC having its own little issues with recognizing hardware and subsequently getting work for it.