I have actually just got another spyder 3 to see if mine is defective. The answer is... All spyder 3 cannot calibrate the monitor perfectly.
Basically Gamut is wrong and the RGB white value from 250 to 255 is all blown out.
In order to test the hightlight value, you have to go to...
Hey,
I have problem with the new 2690 I brought.
After calibration using SV and spyder3, the grey scale value from 250-255 is all white. It even said so at the curve
Also the monitor gamut is a lot smaller than a lot of screenshots out there (which I believe is less than 90% of aRGB)...