Hello, my name is Decoy and I screwed something up.

Basically I upgraded from a 760 to a 970 Nvidia graphics card. Ever since I did that I am unable to boot the Elementary half of my computer, it just gets stuck in a black screen with a blinking cursor. I tried to boot recovery mode and all that did was give me a stack trace. It says "nividia: module verification failed: signature and/or required key missing - tainting kernel ... random: nonblocking pool is initialized and then the blinking cursor again.

Any ideas? Unfortunately I can't remember how I installed the 760 drivers, all I remember is there were a bunch of options. It did work fine though, until I screwed it up with the new card a few days ago that is...

Hope that is enough information, I appreciate any suggestions!