Is is because I upgraded to Windows 10 a week ago? All had been well with the exception of the printer. It would print but I had to download a new driver for it to scan.
Sunday I came home from work to a lovely clean home. R had performed his domestic duties and the place was sparkling, including the desk and everything that sits on it, including the computer. I switched it on and what had happened? The icons on the desktop were huge and everything was fuzzy. Some things were out of proportion. I've now spent several hours trying to fix it and it has me beat. I've googled a lot too but nothing has been helpful. This had happened before but not for a long time and I can't remember how I fixed it. This time it seems unfixable.
I've tried every screen resolution possible. The graphics card and its driver seem to be ok. It is how I remember computers when they start up in safe mode, except clearly it isn't as everything is working perfectly. I've fiddled with the monitor settings, thinking maybe R knocked something when he was dusting. I've tried many other things too. I tried to go back to restore point, but it seems by default that is switched off when you download Windows 10. I could revert to Windows 7, which would not matter or reload Windows 10, but neither is guaranteed to fix the problem.
So some of you can sit back and say in reference to switching to Windows 10, I told you so. I have something ready to post tomorrow but I may be a little invisible for a bit.