Anne-Sophie, I use a Mac Book Pro and Apple 20" Cinema Display. Profiling works fine (Eye One Match, with Eye One Display colorimeter) and the Mac Book handles separate profiles for the Cinema and laptop displays simultaneously allowing me to set the correct profile for each display. Comparing to the generic profiles may be misleading. The generic Cinema Display profiles I have seen, for example, look like they are 1.8 gamma (much less contrast, way more shadow detail than you can print) rather than the 2.2 gamma most often recommended. --Ben