External Monitors connected to MacBook Air keep turning off

Prior to getting my MacBook Air, I was using a MacBook Pro connected to 2 external monitors (same signal, just split using DVI splitter). There were never any issues with this setup, but the same can't be said of the MacBook Air.
When I used "detect displays" I was able to see the external monitor listed under the menu bar icon but the monitors remained black.
Unplugging and re-pluggin in the mini DVI adapter to the MacBook Air bought the monitors up, but after a few minutes, they'd go black again, and selecting "detect displays" had no affect.
Is this related to the power output level differences between the Air and the Pro?
For reference, the monitors are really really old Cinema Displays -- ADC connector actually -- so I am not only splitting the signal with a DVI splitter, but also using ADC to DVI adapters between the monitors and splitter.
I also tried connecting just 1 monitor, but the same behavior persists.
Appreciate any insight
-Ken

This may not help you, but I have got the same issues with my MBA when connecting it to my Acer XD 1250 projector and my Belinea 22" LCD via VGA. I also got the MBA exchanged because the MDP was completely broken and had the Logicboard replaced after that so I'm actually on my 3rd MBA 11"...This is so annoying....

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