Thanks for the reply R you pointed me in the right direction – I have now got to the bottom of the issue, it was a php execution issue, which resulted in the infamous ‘white screen of death’ within wordpress. This was affecting a handful of other plugins too.
Apparently my host set this at 32 MB… I was able to alter the memory allocated to php by adding this line to my .htaccess file php_value memory_limit ?M replacing the ? with 64.
Everything works fine now.