I was wondering the same thing, But I'm pretty sure I did. No other game has problems, it's just this one, which is why I'm confused. I downloaded the correct one to my knowledge. Care to send me a link to the "correct" driver and I'll verify if I have the same one? I was also thinking about looking...

Also, not sure if it matters, but I'm running an ATI card on an Nvidia mobo, someone said it wasn't a good idea, but others said it's just fine. I'm kind of debating on putting the old 9500gt back in and just dealing with other games lagging, at least that ran mx sim without such hassle.

Well it's so laggy that it takes like 15 seconds to get off the gate if that helps any. I wish I knew what was wrong so I could try or do something.

No I mean the sound is ok until I give it any gas. As far as the game it gets incredibly laggy, as soon as it loads into a track, which also takes a while. A lot more than when I had my 9500 in. Which is strange as the 5770 is a much better card. It's just so laggy it's literally unplayable, it's ju...

Does nobody know what's going on? I REALLY want to play. =( I think the problem is driversweeper? It doesn't work I don't think. I'll run it and clean all of the Nvidia stuff I see on the list, but when I restart and run it again the same things are on the list, is it supposed to be like that? Or is...

Sorry for double post. But I just uninstalled an reinstalled the driver exactly how that forum told me, to no avail. The sound.. flickers I guess you could say. It's weird, it sounds alright aside from some flickering when the bike is sitting idle, but the minute I give it any gas it starts to repea...

You're getting software OpenGL for some reason, although the driver string looks OK. I'd try the driver cleaner from the How To Correctly Install New Graphic Drivers topic. Maybe there's something left from the NVidia driver that's confusing things. Funny thing is I always use driversweeper, and I ...

What does the driver info (at the bottom of Graphics/Sound Setup) say? It says, "Driver info: ATI Technologies Inc. ATI Radeon HD 4800 series 3.3.10524 Compatibility profile context." I mean really, it's just this game only. Which makes me even more frustrated, it's always the games I want to play ...

I just installed an ATI radeon HD 5770 graphics card a few hours ago. I previously had a 9500GT in there before which ran fine on medium settings. I went to load MX sim because I was curious as to how it would run it with a much better card in it. To my surprise it ran like my old laptop does, it se...