I just finished to install Ubuntu 22.04 on the friend's computer ( the computer is a little old, the motherboard is Gigabyte GA-M68MT-S2 ) I could install correctly the OS but after that I have see some problems especially when I select any ubuntu button (see the shared screenshot below)
I already installed all the post installation upgrades executing sudo apt update && apt upgrade then I restarted the computer but the problem persist.
I would like know if I have to do any other extra step to finish the setup correctly.