Thx for thre quick reply Skuzzy.
It happens on all planes however not the same views are always affected from plane to plane. The most common view affected is the straight 3 and 9oc. It can be as few as these or all the views depending on the plane. I have to reset my views for every hop and it does get frustrating!
I am running Norton AV...will go and try without it right now.
Once again thx Skuzzy and I'll post my results in a few minutes.