Sorry I took so long to get back to you, Viking; I've had a bit of a time tracking this one down, and a lot of the answers seem blatantly wrong. Just one more question -- can you see the extension on the screenshots? Meaning, are they saving as .tif or .jpg or .gif or what-have-you? If you can't see the extension, follow the following steps:

start/control panel/appearance and themes/folder options/view/hide extensions for known file types

The last one should be a checkoff box, and you want it to be un-checked. Now you'll be able to see how the files are saving down.

Next question would be which app is attempting to open the pics. I'm guessing that your machine is routing the images to an incompatible application. The way around this is to hold down shift and right-click the file -- this will give you "open with" as an option. From there you can specify a better image program, which might or might not be able to handle the pic.

Please let me know if you have any joy with this. If not, I'll keep looking.