DVI to VGA via Belkin SOHO Switch Problems

Hi, I've searched and emailed Belkin support and no luck.
I am using DVI out through a DVI -> VGA adapter (tried Apple® branded and non) then through the company supplied Belkin SOHO VGA KVM switch.
My MBP detects the external display fine, but no video is displayed.
Other monitors/projectors without the Belkin switch are fine using the DVI->VGA adaptor. And I've used the DVI straight out for years without a problem.
Belkin's tech support couldn't figure it out and just recommended that I buy a DVI KVM switch. Nice.
Anyone?
Thanks in advance!

My MBP detects the external display fine, but no video is displayed.
What kind of display is it?
Other monitors/projectors without the Belkin switch are fine using the DVI->VGA adaptor.
Other monitors? What about the one connected to the Belkin switch? Does it work fine when driven directly without the Belkin switch?

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