First off, I'll admit to not having too many details. This isn't my install. :S I'm crashing on boot from a client that worked yesterday. I booted KSP in offline mode on steam once and now it is broken. I verify the game cache and steam says one file needs to be redownloaded and then does nothing. When I load the game it gets all the way through the loading screen but never makes it to the title screen. Mods installed are CollisionFX, one that adds mk3 plane parts, and one that adds a giant reactor type engine, and maybe one or two more. All seemed to be pretty popular when the guy that uses this installed them, but he doesn't remember and I don't play modded. If anyone knows how to check this that would be great. Crash dump is 2MB, will not paste anywhere. What part do you guys need? I'd love to upload as an attachment but I don't see that option. KSP version is 0.90, windows is 8.1 home, running a 4670k, 8GB RAM, and a R9 280x on the Omega drivers. If you need anything else let me know.