Started up my 360 a few hours ago and was happily playing, then after around 20 minutes I got lines across the tv screen (but no red lights on console) so I turned off my console and restarted it, but I then got 3 red lights and nothing on the TV screen (no error code etc, just a black screen). Turned off again and thought that it was prob the same problem as my girlfriend's XBOX, although hers has a E74 error message or something, mine had nothing. 30 minutes later I decide to turn on the xbox to check the power box had a green light on it and the XBOX started up no problem at all, everything seems fine.
I obviously turned it off again and have not started it up since, because I do not know what went wrong or if it is safe to play.
Any ideas? Is it on it's way out? I always thought that with 3 lights it was dead, but mine starts up ok now :S
What should I do? It is an Elite 360 and no longer under warranty. I live in Sweden so would feel pretty hard done to if I had to send it to microsoft and pay for something to be fixed that is broken through no fault of my own, especially as we have already had 1 XBOX ruined with the 3 red lights.