Well, these were taken a while back when it was briefly decided that image quality was lost by my resizing them, and thet are long gone from my hard drive. I'll need to resave them all.

Which, incidentally, is actually quite difficult for me. See, my Internet Explorer freezes when I try to save an image file or open one by opening the file browser. This has been going on since about two years ago and nobody can tell me why it does this, so I have to circumvent it by copying and pasting the image I want to save into Photoshop (and for opening I have to type the file path in the browser).