Hello, I am having PDF link issues.

I have set up a PDF with links to my My space and email address so people who here my music can hear it with one click on a link.

The problem is that the links work on some computers both pc and mac but not on others. So far out of 10 computers its a 5 work 5 dont ratio.

One office where there are 3 mac computers it doesnt work!!

As I am sending the PDF to 'important' people , I want the links to work on all computers, though you can cut and paste the links , I would prefer to not have to.

Have any of you any ideas that could help me?
I have re created the PDF a couple of times with the same results.
Its driving me mad.

Thanks fellow mac users.