Problems connecting Macbook to Infocus X2 Projector

I'm trying to set up my Macbook to project through my Infocus X2 projector using an Infocus Liteshow wireless card.

I can get the screen to project but the visual comes up looking kind of like a 'negative' image. I've fiddled with my display settings but can't seem to fix it.

I don't think the problem is with the projector itself because it projects fine from my other DVD player.

Any ideas? Thanks.