Running XBMC as the Default Dashboard
XBMC can be configured to be run either as an application or as a dashboard. XBMC is well suited to be the dashboard on your Xbox, since pretty much any program can be called from within XBMC. To make things easier, the XBMC team have developed an "XBMC Shortcut XBE" which essentially acts as a pointer to XBMC install. Download the shortcut here. Create a regular text file named "default.cfg" and put a single line in it:
Transfer both default.xbe and default.cfg to the Xbox's C: drive.
Next, configure X3 to run the shortcut dashboard. In the Dashboard Filenames menu (X3 Config Live > Customize X3 Bios > Dashboard Filenames) rename a dashboard to "default.xbe" (it doesn't matter which one you rename).
Figure 7: Renaming the Dashboard
Change the dashboard boot priority to execute "default.xbe" first (X3 Config Live > Customize X3 BIOS> Dashboard Boot Priority).
Figure 8: Setting the Dashboard Order
And disable X3's config autostart (X3 Config Live > Customize X3 BIOS> Autostart X3 Config Live). You can get back to the X3 config menu by holding the white button during boot.
Figure 9: Disabling X3 Autostart
Reboot to Dash to start XBMC.