Danny,
As a temporary measure you could try adjusting the 'Zoom' factor. Click on the little 'cogwheel icon' on the top right of your screen. You can adjust Zoom by various fixed percentages or try the 'custom' label and 'pick your own'.
Have spent many weeks/months catching up on this wonderful episode of life, initially snooping as a guest and finally signing-on on 1st Jan 2014. I shall eventually give a potted history, but, just for the moment, a reference to your posts about VVs and 84 Squadron. I am pleased to say that Squadron Leader Arthur M Gill is still President of the 84 Squadron Association, although for health reasons has not attended reunions for a year or so.
Regards