Sheer brilliance!!. My ASUS V2S laptop was dead. Vista flashed up the symbols showing it was flicking quickly between power and battery. Thought there may have been a dodgy power connection. Then a few minutes later (when battery drained)... SPLAT. Little green light on the power adaptor was on, but little orange light on laptop was not.
Battery out, power unplugged, push power button for 45 secs, battery in, power plug in... back in town!!
Thanks PEIPAUL! Due to go on holiday in 2 days, but needing laptop to stay in touch with work. You'ver set my panic to rest.