[wilsonng]

Just to make sure you're not sure of how to change the growl notifications to always stay on the screen, here's what you can do:


I always set my OmniFocus growl settings to keep the reminders on the screen until I close it.

Make sure you go to System Preferences > Growl.

Click on Applications and select OmniFocus.
Select the Notification to whichever setting you want: Task Available, Task Due Soon, Task overdue


Set the popup menu for "Stay on screen" to "Always"

That way, your growl notification will stay on until you decide to close it.