Triple Display Issue with OSX Lion

I have the following setup:
iMac OSX (Snow Leopard)
3.06 GHz Intel Core i3
4GB 1333 MHz DDR3
500GB Hard Drive
I have 3 monitors hooked up, one is a 24 inch benQ through mini display with vga and then i have the 21.5 imac and then a 23 inch acer hooked up with an external usb video card usb to dvi. I had this setup before lion was released when i was using snow leopard and it worked perfectly fine, but now with the lion update it does not work the screen just continuiously flickers on and off; i tried swapping monitors and it still doesnt work so it has to do with a possible software issue.
I have updated to the latest drivers, installed restarted and everything i can think of; does anyone have any suggestions?
This is a video I made of my issue:
http://www.youtube.com/watch?v=h23Rtkfiuq8&feature=channel_video_title
If anyone can help i would GREATLY appreciate it!

I'm pretty sure its not a monitor issue, as the issues vary between monitors
I'm pretty sure this is a display and adapter and interface problem, especially when the name(s) of your display(s) show up wrong after sleep.
The Mac uses one display driver that is highly parameterized. The parameters to be used are set by sending a query to the display for its name and capabilities. This query is sent on the secondary digital data channel, and is sometimes referred to as EDID data.
Currently both 20's are recognised as 'vga display' or 'color LCD', no resolution options are available, just what it defaults to (640 x 480)
When the name of the display is not correctly reflected in the name of its Display Preferences pane, that is a direct indication the display-adapter-cable-display part of the chain "dropped the ball" in resounding to the Mac's query for capabilities.
Adapters that do not pass the EDID data through, and displays that do not answer when queried for their name and capabilities are the primary source of problems. For example, TV sets that are not "paying attention" to the secondary data channel, and therefore do not answer the query, drive Mac users crazy.
The query is sent in response to four different events:
• System Startup
• wake form sleep
• cable insertion at the Mac-end (not necessarily at the Display-end)
• The use of the Option-Detect_Displays button in Displays Preferences window

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/usr/bin/who am i; /bin/ls -leO@d
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