If you’re having problems sending outgoing faxes from Mac OS X 10.5, maybe you need to (stop using faxes!) check out this knowledgebase article (which also seems to imply your machine may hang during reboot, yay Apple!).
A very cool article over at Macworld shows how to enabled hidden features in Leopard’s built in Screen Sharing to give Apple-Remote-Desktop-like features such asÂ
- Drop colour resolution to improve performance on low bandwidth connections
- Switch between controlling and observing the remote Mac
- Locking out the remote Mac’s keyboard and mouse, or hiding on-screen activity
- Taking screenshots