Nevermind guys. For those of you having the same problem as me, here's a little piece of advice:
I stumbled upon a post by bwkaz, who is apparently one of the admins of this forum. He suggested in another thread that we check to make sure PNP OS is set to Off, and Allocate memory to PCI VGA is set to On. Needless to say, the NVIDIA splash screen came right up after delaying about a minute.
Thanks a lot bwkaz, your a genius!