Layout PDF unrecognised by Corel Draw 6

I had a look around and could not find anything off significance in Layout (not sure where I look for ‘Embedding fonts…’ etc. these terms are not familiar to my basic knowledge). All I have ascertained is that when I create ‘Arial, normal’ 20pt. text in layout and export that one page to a PDF, when I read that file (in Nuance Power PDF) the font is recognised as ‘ArialMT-Identity-H’. Also when I try to import the page into Corel it also identifies it as missing font “ArialMT-Identity-H-Normal” and when it tries to translate it I get a “The File is corrupted” message and import stops. I have tried to change the font in Power PDF to plain Arial and when I try to import it into Corel, I don’t get a missing font message just the “The File is corrupted” message. No matter how I try to modify the file it is corrupted to Corel. If I create a new file in Power PDF with the same text and font I used in Layout, it imports ok into Corel.
This makes me think it’s something Layout does to the font. This probably could be easily fixed by anyone that had Layout and access/uses Corel Draw.

Alex