Hi all, I'm new to this forum, so sorry for any mistakes.. Today I booted my Elementary OS into this (see the screenshot). Blurred or missing texts, no text in menus... The problem is probably corrupted apt upgrade process. Yesterday I experienced a power blackout when apt was finishing the upgrade process. One of the packages were some mesa packages. I tried to re-install them and reboot, but nothing happened. How can I find out the real cause of this graphic glitch to solve it properly? Thanks