Mini dvi to dvi adapter interferes with airport ?

Hi,
I am seeing slower network speed (20% of the normal speed), when I use the mini-dvi-to-dvi adapter... I also have a mini-dvi-to-vga adapter which doesn't cause this network speed degradation.
I guess the dvi adapter somehow interferes with the signals the airport sends and receives. The adapter comes with a very short cable (a couple of inches), so I can't move it out of the way to reduce interference (assuming that is the issue).
In both cases, the adapters connect to the same external display (1920 x 1200) and they both work fine for my monitor. But I'd like to use the mini-dvi-to-dvi adapter because of the (slightly) better picture quality.
But perhaps it's not interference, anyone else has ideas ?
Unless anyone has a suggestion, I am going to return the mini-dvi-to-dvi adapter because it's pretty useless if it interferes with the airport.
For now, I'd recommend others to buy a mini-dvi-to-vga adapter for their external displays...
iMac, Mac Book and Mac Mini   Mac OS X (10.4.8)  

Yes, I have that option set... but your response reminds me that that I haven't tried setting it off, see if that makes a difference (would be quite ironical if setting off "robustness" fixed it
Since yours works, I wonder if it depends on the wireless router I use; I have a Netgear WTG624
Thanks,

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