So I've had New Vegas for awhile and started playing with mods. I made sure my load order was fine, and then ran into issues when I installed a new monitor. So I tried fixing it with mods thinking the game was the problem and even tried the Nexus Mod Manager to fix it but all this lead up to was the game now refusing to play. I press play in whatever launcher, FOMM or default and all it does is exit immediately to desktop not even getting into the game, I fixed the issue with my monitor so all my other games run smoothly but now with NW even after I reinstalled it, it still won't work. I even tried to deleting all my mods can someone please tell me what I must do, because now I'm stuck.

My rig:

GPU-GeForce GTX 970

CPU-Intel® Core™ i5-4690k CPU @ 3.50GHz

Memory-8.00 GB Ram

Current Resolution-1920 x 1080, 60Hz

Driver Version-358.91

Operating System-Windows 7 Ultimate

What did you do to "FIx" the monitor?

Follow this: https://www.youtube.com/watch?v=XCE-qQ3jSXA

You can skip some of it. You don't have to remove FOMM or Nexus Mod manager.