Screen flicker on mid-2011 11" Air

Has anyone else seen this? I have a CTO 11" Air (1.8, 4GB, 256GB). I left it playing Sirius XM through their flash-based player while plugged in. The screen was turned off automatically after I had not used the keyboard, trackpad, or mouse (Magic Mouse) for a while.

When I went to "wake" the screen, it would not come on despite repeated trackpad clicks, mouse movement and taps, and keyboard input.

I tried again after a few minutes, and now the screen came on, but I found that I was seeing a significant amount of screen flicker. It feels like I'm using an interlaced monitor from the early 90s.

I tried disconnecting the AC power, turning the computer off and back on, and moving to other locations (in case it was due to electromagnetic interference from other equipment), disabling wireless and Bluetooth. None of these steps resolved the problem.

--Andrew

PS: As a side note, a lesser problem is that I also occasionally see the Wi-Fi connection is dropped when waking from sleep. I have to disable and reenable Wi-Fi from the preferences panel to reconnect. I saw other people with previous generation Airs complain of this problem, and many said that disabling Bluetooth resolved the problem. I'm not yet sure whether that is true for my case as well.