Few areas blank on window. e.g. filling forms find no box to submit,continue or buy. Other windows O>K>
When doing as you described you probably need to change your resolution.
The submit buttons at the bottom of the page are not showing because your
screen is to large. You can change your resolution back after your form is finished.
You might be able to resize your screen, not sure now. It's been a long time
since I've had your problem.
Thanks for reply but dont think this is answer.Some of boxes missing occur in centre and are there {unseen} if I hover pointer in expected site. only its guesswork whether i am clicking over the submit or the cancel. Same happens on Amazon with no "Buy" button to be seen.Other sites seem O.K.
Thanks again.jayeff