hi, I have installed Win & Ultimate on a Sony Vaio VGN-NR38E, everything seems to be fine apart from the laptop does not recognise the battery.
I've googled it and tried the disable ISB utility (which I installed hoping it would somehow remedy itself) I've tried:

1. Unplug AC adapter. Shutdown
2. Remove battery, Connect AC Adapter
3. Start windows7. Remove Microsoft ACPI-Compliant Control Method Battery,
4. Shutdown, Remove AC Adapter, Install battery, Reattach AC Adapter.
5. Power up

no luck, my next plan is to load a LIVE linux cd to see if the battery if found then..but does anyone have any experience of this problem?
many thanks