I just started using trillian a week ago on my laptop with windows xp and have never had a problem. I just installed it on my desktop computer and it does something very strange. When I open the main contact list window it is fine but as soon as I open any chat window (IRC, Yahoo, etc.) that box gets bigger and bigger until it fills the entire screen. After that the program hangs and I have to close it. I am using it under windows 2000 with a Geforce 3 card. Could it be a confliction between the program and my video drivers? I am using the latest offical nvidia drivers.