OK, so I realised I had downlaoded and installed Acrobat Reader 1.0 by accident.
Uninstalled Reader 1.0 from my X51v and it uninstalls perfectly.
Now when I run the Acrobat Reader 2 installer, it says Reader 1.0 is already installed. Aggghhhh! It's not, IT'S GONE!!!
Any idea why the Reader 2 installer thinks Reader 1.0 is installed? Is there a fix?
Thanks in advance - this is driving me mad (typical Adobe scenario I must say!).