PP 2010 won't save changes

[designer]

Totally stumped.

I have a hyperlink:

C:\Program Files(x86)\Windows Media Player\wmplayer.exe /device:dvd

This launches my dvd from Powerpoint. Works great however when I save the presentation it changes the hyperlink to:



C:\Program Files(x86)\Windows Media Player\wmplayer.exe \device:dvd

The forward slash before device changes to a backslash wherein the windows media player launches but does not run the DVD.

I have tried every combination of save parameters with the same results.

Any help would be appreciated.