HOW TO GUIDE: I've done this on the 770 and the N810, so I have no reason to think it would be different on the N800. Open xTerm, become root, and navigate to the following folder: /usr/share/icons/hicolor/scalable/hildon/ The file names are: qgn_indi_startup_nokia_logo.png (800x480) qgn_indi_nokia_hands.jpg (800x480) qgn_indi_progressbar.png (24x16) Backup the originals (I just added "_backup" to the end of the filenames), then copy your new images over the originals and reboot. If you want to change the progress bar, it may help to know this: The image is 24 pixels wide. It will display the first 8 pixels, then the middle 8 pixels over and over (98 times total), then the last 8 pixels. It took me several tries to get this right, so I'll save you the effort of trial and error. Hope this helps all who want to try this.