Thanks guys...................downloaded PowerPoint 2007 but still coming up with the message 'PPT VIEWER NOT FOUND'. I don't know if it has any bearing on this but when I put the CD into my desktop which is running on XP it reads and plays like a dream. What has Vista got that XP hasn't (or vice versa)??
Saab....... thought I would try and increase my limited knowledge via this great forum before ringing the company tech guys and getting the usual "have you tried switching it off?? tried switching it on" routine