Powerbook G4 (firewire) Dead


I have not used my Powerbook G4 for several weeks and now it will not startup at all. Is Apple punishing me for not using my Mac? I've tried all the suggestions they give in http://docs.info.apple.com/article.html?artnum=14449 but nothing works; the machine does not react at all...
Borrowed a fully charged battery from a friend; still no sign of life in my titanium G4 at all.
Can you help? Thanks!