Hyperlinks change "/" to "\" when saved.

I have a presentation that includes a lot of screen shots and for clarity, I want to have a link to the screen shot in actual size. I put all the images in a folder called "images" and on the pages, there are hyperlinks to the individual images.  For example:

images/one.jpg

When testing, this was working perfectly - after being published, if the link was clicked, the image opened in a new window. After putting links to 140 images, saving the PPT and then publishing, the links stopped working. Here is what I found - after saving the file, the forward slash in the hyperlink has become a backwards slash. Here is a screen shot after saving the file and checking the hyperlink:

Notice the forward slash has changed to a backwards slash. All I did was save the file - after clicking the "OK" button on the hyperlink window.

I am guessing this has something to do about having links in folders versus at the root level.

Any help would be greatly appreciated!

Jerry