Hi,
Tried something else before I saw your messages. I literally went through line by line, cutting out one line of text and then another and then trying to export to PDF each time... to narrow down the culprit to just two lines of text which I then just deleted and typed again. However, before I did this, I tried to cut and paste this offending text to another text box and the result was lots of letters all on top of one another and a real unrecohniseable mess. Don't know why such a strange thing happened and hope this doesn't indicate a virus and won't happen later with other pages! (?)

Thanks for your help which I will try applying if needed again.

Rachel