Hi there,
Thanks for the response - bit of a shame its not a simple fix, but glad I am not the only one with this problem...! Its not a major issue, but an irritating one never the less.
As HowieC said, if anyone has had a fix applied or has had their set looked at, please by all means - post away with the results!
HowieC, hope you end up getting some info on a possible fix!
Thanks
Morgan