I decided to start anew game in Skyrim a few days ago, only to run into a game-breaking bug. All NPCs and the player character somehow spawned, inside each other, standing up and halfway through the carriage where the guard driving the carriage usually sits. Using the console, I found that the entire carriage was empty. Normal dialogue between Ralof and Lokir took place, but the horses froze as soon as they reached the Helgen gates.

Here's a picture:
[img]http://s1296.beta.photobucket.com/user/phronimae/media/ScreenShot2_zpsf157eec3.png.html[/img]

Anyway, this has never happened to me before. I tried disabling all mods and performing a fresh install, but the problem is still there.

PC Specs:
Model: ASUS g75vw
Intel i7 Quad-Core
GPU: Nvidia Geforce GTX 660M

No mods