Traktor 3.4 + Mac OS X 10.5.4 = BLANK SCREEN

I recently upgraded to Traktor 3.4 and had a major issue. Both Traktor and Native Instruments Service Center started with no problems but you couldn't see anything, just the window borders and a blank screen!
It seems it's a display problem and you can solve this issue by executing the following steps:

1) System Preferences
2) Displays
3) Color Tab
4) Uncheck "Show profiles for this display only"
5) Choose sRGB IEC1966-2.1

Start again Traktor and it should be OK by now!