Quote Originally Posted by MiRai View Post

Pretty sure that's a dual GPU card. Dual GPU video cards don't work well with multiboxing... we've been saying this for years.
nVidia lets you turn off SLI on their dual GPU cards and, as far as I know, ATi does not have an option to turn off Crossfire.

Also, playing on Ultra x5 is complete and utter overkill.
I just contacted the person who has build my pc.,
He's telling me that my pc shouldnt see the crossfire, normally.
I might try with another gpu, but i dont wanna throw any money away.