Just built the source ZIP for Mac OS Intel on 10.5.
What's up with this?

This window comes up after loading a file. There doesn't appear to be a way to close it.
The default pane sizes and tab sizes are also a bit off:
What's up with this?

This window comes up after loading a file. There doesn't appear to be a way to close it.
The default pane sizes and tab sizes are also a bit off: