Help! I made a bunch of files in Adobe Photoshop on a Mac. It's an older desktop without a wireless internet connection. The files were copied over with a flash drive and are on the PC desktop. But they won't upload to my Tumblr or Flickr pages. Here's where it gets weird: The files all have the ".jpg" in the acutal file name extension. The files are not large. When the files are viewed on the PC desktop, there is a small multicolored bar at the bottom of every picture. Like, a pixelated color bar. When the files are copied into the flash drive, a similar duplicate file with a period in front of the name is created. Example: A file named "Fathers Day Photo" also has a file named ".Fathers Day Photo". This duplicate file cannot be opened or viewed. Weirder still, is when these errors were happening, I re-saved some of the files with the "Save For Web" function on the Mac. After moving these test files to the PC, they were all totally corrupted! Any help is much appreciated for this!! Thanks in advance.