1) I know how to use startx to go from the command prompt to the desktop. But what command should I issue to restart the desktop without restarting my computer?

2) Linux intrepid currently use ibus to type foreign language as such chinese. Given that bt4 has no ibus, what should I do? SCIM doesnt seem to work for me.

3) Does anybody have any suggestion on how to sniff instant messenging packets? How do you determine the port being used?