Well I'm having some difficulty reflashing!

For some time now (two weeks?) when I put a newly charged battery in my N900 it immediately vibrates and tries to boot (ie. before pressing the start button)! Then it won't boot but instead cycles through a bootup process never quite booting! If I randomly press the start button eventually it boots, otherwise it will not!!

This is a bit frustrating as you might imagine. In fact I am presently using my old N95 as a consequence of this!

So time to reflash! Trouble being...the phone tries to start as soon as the battery is inserted and then is never in the proper "off" state!!!

What to do?