DVI-I (Female) to VGA (Male) ?

[Also posted in All Apple Cinema Displays]
Hey all,
I know its probably been asked a thousand times, but after a quick seach I havnt found specifically what I am after.
I'm trying to hook 2 20" Apple Cinema Displays to a Dual Monitor 2 port KVM switch.
Trouble is, the monitor input for the KVM switch is VGA only.
I thought it would be a simple converter for $10-$30 for a DVI-I (Female) to VGA (Male) so i can plug the DVI monitor into a VGA port.
I did actually get one, but was awarded with a blank screen.
I have confirmed the KVM works (with dual standard vga screens) and both cinema dislays work (when hooked up directly) so it is defienately the converter that isn't working.
Any suggestions?
Thanks very much...
Ben

You need a DVI KVM switch. The Apple LCDs only accept digital input, so even if you can get the adapters and cables to fit, it won't work with analog VGA.

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