for the last two weeks when i open my gmail page i get white flashing boxes darting over the screen around 3x3 inches (screen is 15 inches)
i have no viruses or malware i have done a full scan for all these. my graphic's are up to date also done a "sfc/scannow", no problems
its only on gmail,
everything on the laptop runs 100% but this web page (gmail)
any clues?
If clearing your main browser's cache doesn't help, but using a different browser does, return to your main browser and do a full reset to take it back to its 'fresh out of the box' state. (That won't delete your bookmarks but it will remove any extensions that you've installed. So, if you want to retain those extensions, make a note of their names first, in order that you can reinstall them later).