Does anyone know how do you emtpy your messages in the inbox on an 8300?

Go into your messages and highlight today's date then click the button to the left of the trackball and select "delete prior". This will delete all messages.

You can also do this from the desktop manager

Or just wait a while and your 8300 will delete your messages for you! Sorry just joking!

I kinda delete mine as I go and do not read them and with the "do not confirm" box checked, deleting them is as fast as you hit the delete button. I keep my inbox on my device pretty well empty and save messgae I want to keep in the saved folder.