Color shift still occurs. My color profile setting in Camera Raw was set to sRGB so I was working on sRGB files all the way which explain why there wasn't any shift before saving for the web. I apologize for the falses informations in my previous post.

If I work my files in RGB, the color shift happens as it always did and I basicaly tried everything that was suggested in this tread and then some more.

I'll get a serious book on color management sooner or later but the issue remain fully unsolved...

Seb