I created several photo albums using PPT2007 (operating system is vista). I used hyperlinks for group shots, so that I could display the names of people in the group shots via mouse roll over. When I took my albums to other computers and used PPT2007 Viewer I found that the mouse roll over would not display the names on those group shots. I have sound, animation, as well as hyperlinks in those albums, all worked well, just the hyperlinks would not displays. I might add that when I did the mouse roll over the mouse pointer changed to a hand ( it could identify that there was a hyperlink, but would not display the text of that hyperlink) is there something I am overlooking, or is this a problem in the PPT 2007 viewer?