Quote Originally Posted by 'Bot',index.php?page=Thread&postID=189362#post1893 62
i hear you gotta run it in horizontal span mode or else it wreaks havoc on your framerate. i cant remember why but for some reason wow in both screens doesnt jive. you can though use the other screen for like web surfing, itunes and all that jazz but as soon as you drag the wow window across you framerate gets trashed. maybe someone else can explain better though.
When you are using XP you should use horizontal span mode. Vista supports hardware acceleration on both heads with dual monitor mode. Anyway, some more info would be nice. What OS are you using, is your CPU at 100% load, is your ram at 100% usage?