I've got three displays, essentially the results of a slowly accumulated collection rather than setting out to get three displays, but I figured I'd try a triple monitor setup before committing to buying nicer screens. They are: 1. A 23" Dell Ultrasharp, connected via a miniDP -> DP cable 2. A 26" Song Bravia HD TV from the pre-1080p era, connected via a miniDP -> HDMI cable 3. A ~20" ancient IBM branded LCD, connected via the 5870's DVI port. 1 & 3 were serving loyally and well while 2 was acting as a TV. We got a new TV, and thus the Bravia was just sitting about, so I tried connecting it. 1 & 2 also work fine, when I disconnected the IBM monitor waiting for a longer power cable. But when I connect all three, the DVI connected display remains blank, and doesn't activate. If I unplug one of the miniDP connected displays, it's detected and comes on instantly. Googling more, this appears to be a known issue, using a DVI and an HDMI connection simultaneously. Delightful :\ Any ideas for a work around? The available connections for the TV, which appears to be the problem, are VGA and HDMI.