Chankast uses DirectX and therefore is effected by all of the options that you set for it. btw, I have a Dreamcast and a sweet collection too. i don't need people like you to tell me what to do. you obviously think that i expect this to run perfect, well, for your information, i've been into emulation since the early 90s and have worked on a few emulators myself. sure, they failed, but at least they worked well enough to see that i have some brains. i just wanted to know if there's an app out there or driver that forces vsync. there is for opengl, so why can't there be one for directx. it was just a simple yes or no question and people like you turn all of my simple, harmless threads into a comedic soap opera. all you had to do was say that vsync wouldn't help me and then i would've stopped. can't you see? i overreact, but if i could just get a straight answer every now and then we'd never have to go through this. i'm sorry, i truely am, but you don't even seem to see that i just wanted a simple answer and you gave it to me through repeatedly bashing my intelligence. just forget it. i'm sorry, ok?