Basically, us Windows/IE users are screwed until Internet Explorer becomes color-management aware. I have a wide-gamut monitor and see this shift all the time. There's no way to fix it. (Mac users here will chime in with "The fix is to get a Mac!)

The problem is that IE ignores any color space tags on an image. It simply passes the RGB values to the display adapter. If you've profiled your display that does not really matter, because it's unlikely your display's color space matches sRGB. As an example, saving an image with sRGB in Photoshop and then displaying it on a wide-gamut monitor will show the colors as looking garish, because any saturated color in sRGB will have much more saturation if the same color values are presented in the larger color space of your calibrated monitor. You can see this by pasting an image copied from the web into Photoshop, then assign the sRGB profile to it. Next, select View/Proof Setup and select Monitor RGB. To see the shift select Custom from the Proof Setup menu and toggle the "Preserve Color Numbers" box.

If you have a more sophisticated monitor and/or profiling package, you can adjust the monitor to match a target display and set the target display as the sRGB color space. If you do this, the appearance of the sRGB images will no longer shift in the browser, but that will only be for you and any other users who do this. The rest of us will still see a color shift. You will also lose the ability to see colors outside the sRGB space while that setting is active.

Sad, but that is the nature of Microsoft's current implementation. All I can say is complain to the IE development team and ask them to fix the issue.