I bought and ran the Spyder 3 Express monitor calibration tool on my MacBook Pro (late 2009).

For some reason my result end up with a much warmer colour (warm WB - yellowish) screen. The Mac's standard Color LCD profile is so much better, white = white. So I ended up dumping the Sypder 3 generated profile.

Anyone else have the same experience?

I ran it again on my other machine, a PC, and it actually gives a more accurate results. So I am unsure if it is due to the compatibility issue with the MAC or could it be due to the glossy screen of my MacBook Pro.

Any ideas?