Windows 7: Compaq NX6325 ACPI HELP!!!

Just got a new laptop (well second hand) and it is supposed to be ACPI compliant.



I cant install windows7 as it says it isn't ACPI compliant on the bios, i cant find anything in the Bios to enable it. It comes up with saying the Bios is not ACPI compatable, i have tried looking in the bios but i cannot find anything.

When XP is installing, you can press F5 to select ACPI but i cant, just STANDARD PC.

In the power management bit in XP there is no opition to turn it on.

Does anyone have a clue how to get it running? Or is the laptop duff?

Have tried what seems everything on google, upgraded, downgraded the bios. In device manager it just has Standard PC with no Options.

The laptop doesnt even think it has a battery in it, even though its running off one.