About the Fedora category

This section is for the discussion of Fedora Linux

Dear sir, I installed fedora 22 workstation using .iso through bootable usb. Everything was done prefectly but when I used a doc for writing a letter, the whole screen went hazy (multicoloured bars). I am using fedora first time and made bootable usb stick for the first time ( and I really have grown interest in it). I dont know what went wrong? Hope you could help!!! Also, my usb stick is no longer recognized by the system!