Yes I have preview! I have also solved my own problem.Three quick question's:
1. Are you saying that if you have a downloaded image...and you double click on this image...that the app that opens after double clicking on the image is Photoshop?
2. What file format are the image's. Are they Photoshop file's...or is it a straight up JPEG file?
3. Just to be 100% sure. Is Preview installed on your computer (users have been known to delete things that maybe they shouldn't)?
- Nick
Even after doing that the files are not opening/saving with a resolution that can be placed in InDesign and be readable.