George
I think they are using both vga outputs out of the computer. One for the host and one for the singer. With most video cards you can't use two vga outputs and the svideo all together. I have a shuttle computer and you can't use the svideo if you have two vga monitors hooked to the computer. Check this item out at Tiger Direct, It should let you do what you need to.
http://www.tigerdirect.com/applicati...&sku=G126-1034
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Larry
Shuttle X ComputersWindows XP Pro. SP3 AMD 1.8 gig Processor1 gig Memory
Video NVIDIA GeForce4 MX 32 meg
Dell Laptop 1525
Intel Core 2 Duo 2.1
4 Gig Mem. Vista Basic