On occasion in the last several months I will be working on the computer and suddenly the monitor goes black with an orange 'Out of Range' message. If I was listening to music, the music will still be playing, however I am unable to do anything other than restart the computer. When I attempt to restart the computer in some cases the 'Out of Range' message continues to appear. After restarting several times the computer usually will start normally. This hasn't happened recently, but I'm wondering if this is related to a problem with my video card.