Yes, you need to shut down the server daemon (prpcd.py) before closing Poser. I keep forgetting to document that (sorry). Leave the 'Enable multi-tasking python script mode' UNCHECKED for greatest compatibility. This will allow you to run additional python scripts while the server daemon is running, but the most recently run script will 'block' all the others until it is closed. The multi-tasking mode will allow multiple additional scripts to run simultaniously so you can switch between them. The requires that the additional scripts be written in a specific coding style and that they encapsalate all their code and variables inside their application class. You kinda need to be an object oriented programmer to understand this. So to be safe, leave the 'Enable multi-tasking python script mode' UNCHECKED. I'll try and explain all this better on the web page when I get a chance.