Microsoft’s Support Site had a big checklist to go through, which didn’t quite work.
Fresh format/install WinXP Home
P4 3.0ghz
200gb Maxtor SATA
Radeon 9550 256MB
512MB RAM
When you tell it to shut down, it says the error message “it is now safe…blah” then you have to do it manually.
If you press the power button while the computer is on, it immidiately shuts off.
Any ideas? I’m all out 
There may be a BIOS option you have to change, I think on my motherboard you can set what the power button does when pressed.
[QUOTE=Matt555]
There may be a BIOS option you have to change, I think on my motherboard you can set what the power button does when pressed.
[/QUOTE]
I looked already and did not find anything to that effect, I’ll go check again though.
edit I found a setting that was to enable ACPI 2.0, it was set to No, so I set it to Yes, but no change. This is starting to annoy me hehe.
The mobo is an Asus P4S8X-MX if that might help.
Check in Device Manager to make sure the computer type is listed as an ACPI compliant system. If not, update the driver to an ACPI-compliant Uniprocessor PC.
[QUOTE=Big B]
Check in Device Manager to make sure the computer type is listed as an ACPI compliant system. If not, update the driver to an ACPI-compliant Uniprocessor PC.
[/QUOTE]
It’s not listed as an ACPI-compliant Uniprocessor PC. But why wouldn’t it? We used the same WinXP install disc as usual. And for the update to the driver, you mean to do a windows update and hope it shows up under hardware?
[QUOTE=StimpE]
It’s not listed as an ACPI-compliant Uniprocessor PC. But why wouldn’t it? We used the same WinXP install disc as usual. And for the update to the driver, you mean to do a windows update and hope it shows up under hardware?
[/QUOTE]
It’s one of the drivers that comes with Windows 2000/XP. Just have the update wizard look through it’s own database for all relevant drivers. You don’t need to go to Windows Update. That, and half the time the drivers from there screw things up…