All sorted, apparently Firefox have recently added a .PDF previewer, it automatically set its self as the default reader (hijacked) it doesn't download/convert the complete document, I reset the default to Adobe Reader and all is well again.
Many thanks for the replies.
-- Edited by Santa on Saturday 9th of November 2013 12:03:49 AM
Try clicking the right mouse button on the PDF link then select 'Open in another tab' or words to that effect. Look at the tabs at the top and you should find your Grey Nomad Times ready for reading.