its a one-into-two box so you can run dual monitors with only one vid output. there's another company who makes the same thing but it's cheaper. my questions for anyone who's used these. Right now i have 2 outputs and 2 monitors (17" 4:3 and 22" widescreen). i want a 3rd monitor (another 22") but i dont have any more video outputs. i was going to get a second vid card but i only have regular PCI slots and i couldnt find a compatible PCI vid card that worked with my AGP NVidia vid card. so: - do these boxes have their own vid memory or do they borrow from the existing vid card's? - do they support wide screen resolutions? - how does Windows manage 3 monitors when one is being split thru a Matrox box but the vid card only has 2 outputs? If i had a newer computer id get another PCI-E vid card and be done, but that's not an option with my current setup. i only have regular PCI slots, and theyre all full anyway. so i need something compatible with my AGP vid card. thanks.