My 667 Ti-book has suddenly developed a headache. Despite having a nearly new battery, it's refusing to charge it properly and reporting it as "not connected." I've tried the usual remedies: reset PRAM & PMU, removed battery and pressed power button for 10 seconds - removing the battery works briefly - the battery appears - but then the "X" appears in the icon and it's not there again. In the profiler, the power info varies from an expected reading to no battery at all in sync with the menu bar icon. I've reinstalled Tiger but it hasn't solved the problem either. At one point after removing the battery, it reported 92% charge before saying not connected, so I left it on to drain the power to see if that would make any difference. It lasted over 5 hours before dying, so it's not like the battery is done for (it's LED indicators also appear to work OK). Right now I'm recharging it but every 10 minutes or so the charger indicator goes from orange to green and I have to remove/replace the battery to get it charging again. Has anyone had any experience of this? EDIT: May have resolved this - I've discovered on this model there's a PMU reset switch under the back cover - I was trying the multi-keypress method. After pressing switch, battery info is reporting correctly and is charging OK. EDIT: Seemed OK for 20 minutes, battery steadily charging now it's gone again.