Radeon hd 7570 with three monitors

[Tory 90]

HI,

I just installed a new Radeon HD 7570 in my new Dell XPS, Windows 8. Two 24" monitors (1920x1200) hooked up to the two DVI outputs work great. Hooked a third 24" to the Display Port with an active adapter to DVI, but it won't recognize the third monitor. Monitor keeps saying to check the cable, which I;ve done. Do I need to change some setting? I'd hope it was just plug 'n play.

Thanks

 

[Tory 90]

HI,

I just installed a new Radeon HD 7750 in my new Dell XPS, Windows 8. Two 24" monitors (1920x1200) hooked up to the two DVI outputs work great. Hooked a third 24" to the Display Port with an active adapter to DVI, but it won't recognize the third monitor. Monitor keeps saying to check the cable, which I;ve done. Do I need to change some setting? I'd hope it was just plug 'n play.

Thanks

OOPS: typo 7750 is correct

 

[Tory 90]

Never mind. It was a bad DP to DVI adapter.