i don't know why, but when my computer returned from screensaver, there were four ... looked like rips on the screen of my desktop, but rips of code. kind of like a barcode, but not straight lines. they were gone when i refreshed my desktop and background, however i started seeing it attached to the end of corners. i forgot to take a screenshot, but does anyone have an idea of what this might have been? a restart of my computer doesn't show them anymore, but it was interesting.