Our Roku had the overheating problem and finally the screen turned pink and does not change. Took it apart and tried to do the fix as seen on Youtube which worked for awhile then went back to pink screen again. Emailed customer service and they gave me a return ok but never gave me an address to mail the device back to. I have emailed and emailed and emailed and NO ONE REPLIES!!! Where do I send the device although by this time don't know if still under warranty.