XP Restarting

[V8 Animal]

A problem has cropped up on my pc when i shut down the pc using windows shutdown it restarts a couple of minutes later all on it's own.
If i press and hold my on button for 4 seconds it shuts down and does'nt restart.
So i assume it's a windows problem.
Any clues?
V8 Animal

[ThePassenger]

Sounds like either ACPI is screwed or Windows is going in to Standby and waking up.

[Zad]

Are Wake-on-USB or Wake-on-LAN enabled?

[bigdods]

Or wake up on modem ring - I had a motherboard battery die on an old machine a few years back, reset the BIOS to its original state. Many times I came into my office and found the pc churning away. Turned out the internal modem had a wake on ring feature that had reset to default. Every time the phone rang the PC started up!

[V8 Animal]

Bloody pc still doing it after checking the other posts.