Well, Safari = Mac only browser, so that was the 1st big clue right there. I love my Mac, too, but I use my PC far more because it's newer (better specs) and has a large screen.

That having been said: Can you PLEASE accomodate the majority? This makes no sense. The images look like absolute s***.

If anything, follow Acadia's suggestion and reverse the default. Let the image display at its original size, and allow the user to zoom out. I know you guys don't want large images stretching the tables in which they appear, and so this is your idea of uniformity... but it sucks. Out loud.