OK, so the 24WMGX3 arrived yesterday. TNT picked up the old one today.
Wow, very nice monitor. Would definitely recommend it. Nice upgrade from the GX2. Image & colour quality very good (I'm fortunate enough to have a Spyder 2 to calibrate it with).
Games look amazing, almost too big

Extra desktop space is very welcome in Eclipse or Visual Studio for programming & outlook finally has enough screen space to be usable
Bought a GTS250 to go with it & also very happy with this. Everything seems to run native res with all the detail up high or max. Very smooth.
As I said when I opened the thread. I'd take advantage of a warranty swap if your monitor is defective.
I'll sure be buying NEC in the future that's for sure.