Powerpoint Presentation Sounds Path is Wrong

I have a PowerPoint presentation that has sound bites in it and the path to the file is shown when I choose 'Edit Sound
Object' from the right-click menu.

When i play the presentation on any other computer but mine it doesnt play the sound.

Does anyone know how to edit this path in order to point
it to a new location when the file is moved?

I could just reinsert the sound object but it would mean
a lot more work (there are lots of slides).

 

Looks like this might help:
clicky

or this:
'nother clicky

Gram