Alright. Sorry I was snappy. I'm having my own issue elsewhere on my N900 right now (trying to figure out where the hell to get the 'fiasco-flasher' package to flash the kernel from within the N900...). Well, my only guess is there might be something broken regarding python, or something went wrong during install. Does your battery icon only not appear in the status menu icon tray, or is it also gone from the pop-up menu as well? Also, can you post what is located inside this file: /ect/hildon-desktop/status-menu.plugins ?