Never had this problem before.
I was playing and my xbox just crashed once after 5 mins. The second time it crashed after 5 mins again but this time some weird lines came on the screen and a sort of high pitched sound came from my TV. I switched the console on again to check if it got the RROD, it didn't. :pop:
It is in a sort of confined space with my hot PC fan blowing near it it. (Stupid, I know) When I get my new PC it will be in another place and the xbox will be in a more well ventilated area. I won't use it again until it is in a more well ventilated area.
Do you think that it will survive for much longer, should I worry? Baring in mind that it is a fairly new model. (2008).
The picture was similar to this.