I've noticed that two of the images I've uploaded recently have changed color somewhat and lost overall brightness and saturation. Both shots contain closeups of autumn leaves which are predominantly yellow with patches of red. The original jpegs on my system show well saturated yellows and reds pretty much identical to the leaves I actually shot. However, after upload to the site, the color saturation of the yellow was reduced, the reds had changed to dull brown, and the overall image was less bright. I compared the download from caedes at 640x480 on my monitor side by side with the original image to make sure I wasn't imagining something. The differences are very pronounced. Here are links to the caedes images:
http://www.caedes.net/Zephir.cgi?lib=Caedes::Infopage&image=Accipiter-1098323575.jpg
http://www.caedes.net/Zephir.cgi?lib=Caedes::Infopage&image=Accipiter-1097970626.jpg

Both these show the same red (original jpegs) to brown (caedes postings) changes in the and loss of saturation in th eyellows. However other images I've uploaded recently show no color changes at all. Any idea what is causing this situation? thanks...