Please help!

I have an issue. My issue is this: Every single time I get my colouring right in PhotoshopCS, everything is exactly how I'd want it to look when it goes up on m' livejournal, and then I save it... and well... Adobe pretty much tells me to screw myself by making the colours completely skewed. 

Okay, well, completely isn't entirely true, but the colours tend to be quite dark... or, in the case of Saving to the Web, very very green. I don't know what the deal is, and I've tried adjusting my colour schemes to compensate for the inevitable adjustment made on Adobe's part, but it doesn't seem to pan out.

Is there something I'm missing? All the tutorials I've tried out, if they've been successful for me (my screencaps tend to be quite dark, and the resolution is a bit poor, so they don't always have the greatest results, but that's another issue enitrely!), have been followed to a "T", but I'm just not sure how everyone seems to have these illuminous icons in their tutorials and mine... well... they're very dark. Not at all illuminous. At least they aren't after I've saved.

Any help, or tips would be greatly appreciated.