MacBook Air won't run 27" 1920x1200 display

I have a 13-inch Mid 2011 MacBook Air. I have always used it with a 22-inch Dell 2209WA display which has a 1680x1050 resolution. This is done via a Mini DisplayPort to HDMI adapter, and a HDMI to DVI cable.
I just picked up a 27-inch Dell 2709W monitor which runs at 1920x1200. The monitor just won't display anything from my MacBook Air. I am using the same Mini DisplayPort to HDMI adapter and have tried it with both an HDMI cable and the HDMI to DVI cable. The MacBook Air detects the display (it shows up as Dell 2709) but nothing shows on the monitor. The monitor goes into power save, then wakes up a second later, then back into power save etc. Just keeps cycling.
I tried plugging a different laptop into the monitor with an HDMI cable and it works perfectly.
Any ideas what's up? AFAIK the MBA should be able to run 1920x1200 resolution?

I've got similar display issues with the Cinema display 27 attached to my macbook air. But I've also experienced it with the display attached to my macbook pro, and imac27" as well, so I don't think it has to do with the mac air. Mine was still in the 1 year warranty period so I took it in for analysis and repair yesterday. I'll post here what I they find out.
With mine I've also noticed when plugging the monitor into other computers I am required to also unplug the power and then plug it back in. This action allows the monitor to work about 60% of the time, other times it just flashes in all four corners and then stays dark.
I would also say it is not software related, as I've used the monitor with a windows based gaming machine and it has suffered the same issues (going dark randomly, not working when switching connections, requiring unplugging/replugging of the power cord or in some cases requiring me to reboot the computer)
My recommendation is if it is under warranty take it back. $1,000 monitors shouldn't have any of these type of quality issues (especially in less than one year).

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Step 1
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Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
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Step 4
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
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Battery Information:
Model Information:
Serial Number:          D86207311M5DKRNAA
Manufacturer:          SMP
Device Name:          bq20z451
Pack Lot Code:          0
PCB Lot Code:          0
Firmware Version:          406
Hardware Revision:          000a
Cell Revision:          162
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Fully Charged:          No
Charging:          No
Full Charge Capacity (mAh):          6463
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Amperage (mA):          -1370
Voltage (mV):          7478
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Disk Sleep Timer (Minutes):          10
Display Sleep Timer (Minutes):          10
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Wake on Clamshell Open:          Yes
Wake on LAN:          Yes
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MacBook Air won't run 27" 1920x1200 display

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