[3/4 of my screen is missing]

So I just modded dark souls with the tahnks obama mod and things were fine until I loaded my file. About 3/4 of my scrren is grey.

What do I do?

[Unable to mod...]

So I'm trying to add the Thanks Obama death screen to Dark Souls and I get this

http://media.tumblr.com/211a93273c8b68ebe1d3f76546f20a03/tumblr_inline_mmrn3b4s0m1qz4rgp.png

Help??