www.dl2rum.de

I'm getting 'growl not running' when I start the program. I seem to remember updating growl but I think I have run Rumlog since then. Anything I should look for? Growl is running.
Running Lion 10.7.2 on a late 2008 Macbook Pro, Growl 1.3.1 and Rumlog is enabled in Growl preferences.
John N1JM