I use Firefox (never used IE by choice for years).
I'm wondering 'what changed', as the problem commenced immediately afyter I copied-over the images to the DVD and created the new 'Download' folder, which, as I stated is totally empty . . .
It's only today that I have noticed the lack of any of my recent images.
Bugga - it's a Firefox problem. I rebooted my laptop, no change, so then I opened IE7 (!) and no problem saving images . . . .
Using Firefox 2.0.0.3 - recently downloaded (AND a recent update . . . )
Hmmmm . . .