Hi there, can someone lend me a hand? I successfully flashed the new BIOS and was able to disable IGP and enable PEG, but the nvidia 770m is not showing up in device manager, is that normal? Also I used to be able to change settings in the BIOS but now it seems that the BIOS won't load. When you guys talk about editing the .inf file, is that for the nvidia driver from dell's website or the most updated driver? I tried searching for those strings with the most updated driver but was unable to find them. EDIT: I fixed the BIOS issue by following those directions on pulling out the card and CMOS, extremely confused about the driver though, I'm not sure which driver I'm supposed to edit and how the nvidia card is still not showing up in device manager.