I have recently had a number of my photos rejected for contrast, which has been a little surprising as I've been making sure that contrast looks realistic before saving them in readiness.

A case in point is this one, which was rejected this morning (for soft as well, admittedly):
http://www.airliners.net/addphotos/r...28298387.8674lx-stcmanmh030212.jpg

However, when I open the uploaded image directly from my PC, the colours are much more vivid and I'd argue that the contrast is correct (hence why I uploaded it).

What I don't understand is why the contrast has changed on uploading (and this isn't an anet issue; it happened to the copy I put on Flickr and another file storage site as well which is why I can't put up the original image to compare!); and what can I do to prevent/work around this? Is it some strange post-processing feature employed by Windows or Google Chrome?

Thanks