I have an issue that fixes itself but I worry my be a sign of a bigger issue. So when I unplug my computer (turning off the power supply, removing the power cord and hdmi cord) then plug everything back in and then power it up again ,the first time I boot it I get a black screen and cursor. But when I reset it after the first time, it boots up normally,And doesn't do it again until I uplug it again. Any idea what happening?