thunder bolt cable flickers external screen
I have a thunderbolt/ mini display port cable and when pluged into either my tv or LG external monitor (via HDMI cable), the screen will occasionally go black for 15 seconds then come back? The cables are not pinched so I think it's the port. The computer is still under warranty but Apple wants money just to talk to me. Any suggestions?
Mac Pro, Mac OS X (10.7.3)