CS6 Windows 7 - On embedding ICC profile in jpg

Hi all,
I have the need to save my AdobeRGB photographs as jpg for web publishing. With "normal" images whatever I do works reasonably well. But with a project of nocturnal images, where there are many details in the deepest shadows, I found that the only way to have a jpg that looks on the current versions of IE, Firefox and Chrome like the original PSD is to generate a jpg with adobe RGB (i.e. not converting to sRGB), and *without* embedding the profile in the jpg. All the other options (adobe rgb w/ profile, sRGB w/ or w/o profile) give a jpg that looks significantly darker than it should. I can understand that the new generation browsers don't necessarily need sRGB, but I don't see how embedding the profile could hurt. Can anyone shed light on this?
Thanks,
Alex Pardi
PS - Here follows an example: on the right, the image as it should look, with very dark but discernible details above the lit window; on the left, pure black.

Notes:
1) the right image is the bottom one, the one too dark is the top one; but uploading the jpgs here probably caused them to be saved again on the forum database, and that made the difference much smaller than it was. I can send the originals to anyone interested.
2) And, I forgot to add, I'm looking at all this on a hardware calibrated monitor.

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Not sure the following answers your question, but have a look here:
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This gets better and better, Bryan.
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Hi
I´m using Illustrator CS6.
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Have already done everything about opening and closing. It´s perfect.
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CS6 Windows 7 - On embedding ICC profile in jpg

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