Screen flickers - wacking it fixes - sometimes
I have a MacBook Air mid 2011 with a flickering screen.
This has been going on for quite awhile, but sometimes when I turn the laptop on the screen is grey, and if I twist the screen one way or the other I can usually fix it, however, just hitting it or moving, will cause it to go grey again, or a line 2/3rds down horizontal will appear with the bottom grey, and above in color.
Obviously not a software issue, but wondering if anyone has come across this, and is it a loose wire, or is it in the display.
Is this a good question?