Whenever I try to run fullscreen, there is music and sounds but the screen is just black. It works fine in windowed, but I can't do the "go 2Xwindowed" or whatever it is. When I messed around with the settings file, the game doesn't work at all. Could Somebody HELP?

Go to settings.ini, set your resolution to 1280x800, then set NxWindowed to 0 and FullScreen to 1.

Das what i did, but it didn't werk, so I pluged in my laptop in and it started werking. For some reason it doesn't werk if my laps not charging.

Talk like a normal person, this isnt IM, its a forum.
Your laptop probably has a power saving setting that underclocks the CPU when unplugged, so it doesnt have enough power to run CC full screen without the extra juice. you can probably change it by exploring the options accessed by right-clicking the charging icon in the bottom right corner, and selecting power options.