It is a good idea to include the machine type and OS version in your problem posts.
Quit iCal, then try giving this command in Terminal:
defaults write com.apple.iCal 'Default duration in minutes for new event' 60
It is a good idea to include the machine type and OS version in your problem posts.
Quit iCal, then try giving this command in Terminal:
defaults write com.apple.iCal 'Default duration in minutes for new event' 60
changing start and stop times for events