Hi, Sorry for this late return, but I changed the OS version in order to see if it's better with ubuntu server and cinnamon desktop on it, instead of desktop gnome + cinnamon. And indeed, it's a lot better ones installed. It wasn't a bug. It seems I have some power peaks that are made by my refrigerator when turning on. My computer reacted to it only with these RGB mice, where it wrote Trust on it, but it could be an imitation of a Trust mouse. I've tried several different mices, and only the RGB one gave this trouble. Maybe because of this RGB in it, it uses more power and calls the surge to it. It's narrow. I've no other inconvenience due to this power issue in my little appartement. Because of that I was thinking about buying an UPS, but it's really expensive to have one for the power supply I use on my PC (750W) So I think it will do for now with no RGB mouse ;) ___________________________________________ MARTIN BERBEL, Tony GSM: +32 (0) 477 / 33.12.48 LinkedIn: https://be.linkedin.com/in/tony-martin-berbel Facebook: https://www.facebook.com/Wingarmac ------------------------------ Le lun. 22 févr. 2021 à 07:20, Daniel van Vugt