A Problem With PowerPoint

[Joanna]

Hi,
I have problem with my presentation with Power Point.
I do a catalogue of products in Power point. I have near 500 slaides and
many links to other slides.
Two days ago my presentation break down. When I saved the file and closed it
and opened it second time, my links to other slides were empty or they
betoken to slide, which I didn't set. (for example, I set link to slide 300,
but when I open the file the link betoken to slide 320). I don;t know what's
happened. And why it happened.
Please, I need help.
What's I must do ?

Thanks you,
Joanna

 

[Echo S]

Lost hyperlinks, hyperlinks link to wrong place, hyperlinks stop working
http://www.rdpslides.com/pptfaq/FAQ00401.htm should help explain what's
happening.

 

[Joanna]

Thanks you so much for your help
I am so grateful.
I am know everything now

Joanna