I have never had one turn yellow and die. most of the older one had burn in issues but the showed the same thing 24x7 for a very long time.
I have never had one develop bad pixels either.
I say sell it while you can. if you current one...
XPS m1530 stereo mix option...you can downloaed the drivers from dell. Version 18.104.22.16815_RC23-WHQL, A13. For xp and works on vista but you loss the hdmi audio out control