Mu evilwarrior

This game doesnt run smoothly on win8.
on log on screen to the game itself, its so laggy that its not playable at all.
how to fixed?
maybe installing proper graphics driver?

Welcome aboard, SeoHyun. Have you played the game on other operating systems? How does it work on them? I understand that this is an online game, so how well does your internet connection normally work?

before, my os is win7 i played the game smoothly without lag. the problem is when i upgraded my os to win8 64bit. its so laggy that you cant even play it well. on the log on screen its already running like frame per frame.
i have ati 5750 vid card.

Was your Windows 7 32-bit or 64-bit?

64 bit.

SeoHyun, I'm sorry to say that I don't know what to do. Windows 8 plays most Win 7 games better than Win 7, but every new system has problems with certain software programs. Nobody else is answering your post, so there is probably no one else familiar with the game. If you installed the Windows 8 Preview Version on a partition, you can still go back to Win 7.

ok i am searching some post under tut/virtualization. i have win7 on other partition before i install win8. the problem now when i boot,it automatically boots win8 without asking me what os to boot? what will i do to make me choose which os i will boot?

SeoHun, restart your computer and watch the screens carefully. At some point, it will ask you which system you want to boot to. It should give you a choice of which one will start up by default.