^
Just a little update.
For the U2410, don't use custom preset, it will look wrong, which I actually tried.
I manage to follow this post and got it dead on as it now looks identical to my other Dell Ultrasharp monitors (2407, 2209 and 23" one).
http://www.luminous-landscape.com/fo...3825#msg563825
I basically used an i1 Display Pro and went into the factory menu settings and adjusted the preset for standard to get it to match the white level as accurate as possible, then profiled it.