There must be a program on your computer that automatically changes the EXIF data for the pictures you transfer or download ant it's related to the Olympus camera. Press CTRL + SHIFT + ESCAPE and then close all the applications related to the Olympus camera from the Processes tab. Additionally, use Exif Pilot to manually edit the EXIF data for the images you download, but if you close the program, the Caption area shouldn't be changed anymore.