I have a Surface Pro 4 with I5 etc.

I have not changed a single setting in probably a year or more. I have not added any new apps or programs in at least a year.

Today, half the sites I click on start flickering bad enough to cause a seizure lol. Other sites work just fine.

I have scanned for malware etc. & all seemed fine.

Does anybody know this would cause this??

~John