I have been unable to get beyond the grub boot screen of the live dvd/usb.

The Try Ubuntu without installing, Install Ubuntu, etc menu shows, and I have tried adding/replacing nomodeset and no splash with neither helping.

Even "Check disc for defects" does not display anything when selected. I am at a complete loss as to how to fix this one. I have had many successful installs in the past, but this is definitely a first for me.

Just as FYI, Gfx card: Geforce GT 635M

I realize this particular card has Optimus on it, however even the alternative boot/command line install fails to load.

Any help would be appreciated.

I realize there have been multiple threads on this, but none of the methods within them have solved this yet.

Thanks