Dear List, I am running Greenfoot on Linux (Debian/Testing, Java-6-Sun-1.6.0.26). The Greenfoot version which I am running is Greenfoot-2.1. I notice on Linux that the scenarios tend to be very laggy. I have tried different versions of Greenfoot but all of them are laggy. For example, When I run the Wombit scenario, I experience a few seconds pause of Wombit at random and then it resumes with normal speed. The buttons on ide are also unresponsive for a few seconds too. I wonder how I could fix it? Regards, Ozhan