I plugged in my usb key and my resolution and colors suddenly changed. restarting didn't do anything. everything displays normally in safe mode though. There were no error messages or anything. What should I do?
1 x Seagate 120GB SATA (OS installation)
1 x Seagate 200GB SATA
2 x Seagate 320GB SATA (Hardware RAID 0)
1 x Seagate 250GB IDE (in external USB box)
1 x TrekStor 750GB USB