screen issues
seeing horizontal grey lines and black lines at the bottom of my screen
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jft005 wrote:
seeing horizontal grey lines and black lines at the bottom of my screen
Resetting NVRAM/PRAM http://support.apple.com/kb/ht1379
if no resolve
Try resetting the SMC https://support.apple.com/en-us/HT201295
Otherwise I suspect you have a hardware issue:
Call Customer Support (800) MY–APPLE (800–692–7753)
or call AppleCare Support at 1-800-APLCARE