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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 and 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.

As reference, I have followed the following page: My computer boots to a black screen, what options do I have to fix it?

Moreover, I have confirmed that the particular iso that I have burned can be booted through Virtual Box.

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Have to you checked the md5sum off the downloaded iso file? – fabricator4 Nov 24 '12 at 5:07
Yes, the md5 matches – bmdr38 Nov 24 '12 at 5:24

Try to switch off in BIOS the option "Fast Start" or something like this from the Boot tab. Probably you problem has nothing with the graphics.

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