Shows green screen on start

Question

when i turn on the apple tv its shows green screen and then the tv search for signals..
when i try in anuther tv its work ok.
aneyone can help? i only have the apple tv 4 days.

Answer 1

Do you have any of the purchase paperwork that came with your iMac.  It might have some of the info on it, i.e. the CPU type and
First see if you can Boot into Safe Mode, Mac OS X: Starting up in Safe Mode.  If you can you can access the About This Mac menu option and the System Report from there to see if you have the recalled graphic card.
If that fails see if you can Boot into the Recovery volume (boot with the Command + R keys held down) and access the About this Mac info from there.
Or look on the iMac for the serial number and compare to this info:
t
he iMacs must fall in the following serial number configurations:
The last four characters of the serial number must contain one of the following groups (for example, xxxxxxxxDHJQ):
DHJQ, DHJW, DL8Q, DNGH, DNJ9, or DMW8
DPM1, DPM2, DPNV, DNY0, DRVP, DY6F, F610
If the iMac falls within one of the above the serial number categories and is confirmed to have the graphics card issues, Apple will replace the AMD card free of charge up to three years from the computer’s purchase date
This is from this website: Apple opens graphics card replacement program for some ...