As was reported before many times, the solution to the error you're getting is reinstalling Xquartz. Engin On 5/28/15 7:33 AM, saleem raza wrote: > Hi, > > I recently updated the OSX on my IMAC to OSX Yosemite version 10.10.3. > > Since then I am unable to open CCP4. I have tried to reinstall the > CCP4 but still the problem is there. Anyone have any information how > to fix this issue. > > I have attached the screen shot of error message. > > regards > Saleem > > >