Dual Monitor Colour Differance

I have just bought myself a nice 22" wide screen Samsung SyncMaster 225BW to go with my new vista setup.

I also have a 19" Neove F-419 monitor which has been very nice and worked amazingly the whole time i've had it.

I upgraded my whole system and kept the older monitor so I can run dual screen on my Point of View Nividia 7600GT Both on DVI

Love dual screen and helps me multitask and I will never go back to one monitor BUT after a lot of tweaking I have noticed after getting the picture colours correct the white on my Neovo F419 is white but the white on the Syncmaster 225BW is yellowy white.

The Neovo seems to give a better picture.

The colour temp on the neovo is 6500
The SyncMaster 225BW doesn't offer a colour temp

I have set the brightness and contrast by turning them both to 0 loading the windows "blank" screen saver and turning the brightness till it just starts to turn grey so it keeps it black and then turned up the contrast till it looks good. I read how to do this elsewhere and as I spend hours and hours infront of the screen want to save my eyes.

I've tried loads of settings including the colour magic on the samsung CD (came with the monitor) previously I have never required colour software CD's on a monitor.

I tweaked it via the Nividia control pannel so that the settings look almost identical but the white on the samgsung is so yellow it's annoying as I do webdesign and want the monitors as close as possible when it comes to it.

Help please?