Hi, We discussed this on IRC. I thought I would send in the patch, simple as it is. The issue is that PrivateAnimScreen's constructor in animation.cpp initializes mPluginActive twice and PrivateAnimWindow doesn't initialize its mPluginActive at all. I think the second initialization loop should be moved to the PrivateAnimWindow constructor. This fixes a bug for me where open window animations don't always fire. The patch is attached. Thanks, Jay