I bought a Mac Mini off eBay recently and it didn't come with a mini-DVI to DVI adapter so having 1 VGA monitor and 1 DVI/VGA monitor, I bought a mini-DVI to DVI-I adapter and a Displayport to DVI-I adapter because I have a DVI to VGA cable that works fine from the DVI output of my G4s video card. Neither adapter actually carries a VGA signal to my Samsung Syncmaster 913n. It shows up in the displays preference pane so the Mac knows the monitor is attached but it simply doesn't output a VGA signal. I specifically got DVI-I not DVI-D adapters because they carry both a digital and VGA signal so I'm at a loss as to why they don't work and I see no other option than buying a Displayport to VGA adapter. Is there something I can do to avoid this? I've tried both adapters with the DVI to VGA cable and neither will output to my Samsung VGA LCD but both are fine with a DVI connection.