Hey guys- Another issue with a Macbook Pro. When the user tries to open iCal through the Applications Menu they receive the message "You can't open the application iCal because it's not supported on this architecture" In the software updates there is no update available because it seems as if the program isn't installed on the book. I tried downloading the most recent version (v1.5.5) from the apple site but when I try to install I get a message that says "iCal software cannot be installed on this computer" Its running OS X v10.5.8 and iCal is supported from 10.2.3 and up. Any ideas? Thanks for the help. I do have screen shorts of the messages if needed, however I copied them word for word.