Transmission

I read this topic , and followed the suggested steps:

11. Deletes the preference file again.
12. Starts the application again.
13. Does nothing at all, re conf or anything. Not even resizing the window. Transmission begins to upload the torrents.
14. Timestamp +1m30s after deletion of preference ...

Hey

Today i've downloaded Transmission 1.41, but after downloading for a few minutes, Transmission gets frozen.
I'm using a Macbook Pro, and i'm running Mac OS X Leopard 10.5.6.
Also, I tried to download the newest nightly build, but the problem is still here.
I can't seem to find any crashlog on ...