donkey42, your a star m8

I can't thank you enough for taking the time to find all this stuff out for me, even if it does not solve my problem. Can I just ask how the page file affects display or visual content please? I am just curious so I understand this issue better for future reference.
This is the first time I have seen this mentioned as a possible cause of my problems and am very hopeful it might solve it too. I have tried virtually everything else so here goes.
Speak soon and all the best,
Jay