Wake Up!  Wake Up!  Monitor, Wake Up!

Like others, I am very pleased with my new MBA 2.13/4gb/256gb. But waking up the external monitor is driving me nuts! I can't find any consistency in what it takes to wake up the monitor from MBA sleep mode once I connect it to the DVI adapter. The monitor is a Samsung 32" that fully supports the resolution, and produces a great looking image - when it works! No problem running both the MBA open with the monitor, but once I close the lid and press the spacebar on the Apple bluetooth keyboard (or mouse for that matter), most of the time the monitor just sits there. About every third time, it works just like I would expect, but the other times, it just refuses to recognize the MBA. I suppose that the MBA just isn't sending a signal to the port, but the inconsistency is what's driving me nuts. I have installed all updates through Software Update, but that didn't resolve the problem.
Anybody found a solution yet?

UPDATE: Even though I did a Software Update immediately following my data migration from the MBP to the new MBA, I went out to the Apple site and downloaded the update again. Presto! Now the external monitor and MBA are functioning well together - just like I expected. Interesting.... Maybe it was the reboot, maybe the original update was overwritten by something else. I dunno.... but whatever the cause, everything is now behaving like I wanted.

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