ACPI / WinTV-NOVA TD-500 / User accounts Nightmare

Just fitted Hauppage WinTV-NOVA TD-500 PCI card to my old,

Conroe 865pe / Core2 6300 @ 1.86ghz / 2xPC3200 HyperX etc ,

and it works fine but, along the way I'm having a fight with ACPI, and XP

Home edition's User accounts - which I've never fully understood !

....and Hibernate is halting after it's progress bar has fully travelled from

left to right - until I tap a key on the keyboard - then it instantly Powers

down !

I did have a User Password set on the default User which is a full

Administrator account labelled AnotherMe,

and at one point, when I go to Control Panel | User Accounts, I could see 3

accounts, Administrator, AnotherMe and a greyed out Guest account "Guest

Account is off"

I think the machine was always logging in to the AnotherMe account,

....just tried Start | Run | control userpasswords2 and put the password

back in the Administrator account, (no password in the AnotherMe account,

and rebooted, and a login box for the AnotherMe account appeared, so I hit

entered and it went straight to the desktop !

When I use Start | Run | control userpasswords2 | and clear the check-box

labelled "Users must enter a user name and password to use this computer,"

and then get a box where I can choose who gets logged in, so I type in

AnotherMe, and then reboot, and still get the login box and have to hit

[Enter]

....just added a Password for the AnotherMe account, and rummaged through

Start | Run | control userpasswords2 again, and cleared the check-box

labelled "Users must enter a user name and password to use this computer,"

and got the box where I can choose who gets logged in, typed in AnotherMe

and rebooted, AT LAST no login box !

Anyhow, when I Hibernate the machine, Hibernates progress bar travels fully

from left to right, I can hear hard-disk power down and auto-park but,

system does not power off until I press a keyboard key,

and resuming from Hibernation I get a "Unlock Computer" box labelled:-

This computer is in use and has been locked.

Only ME\AnotherMe or an adminstrator can unlock this computer.

AnotherME is in the User Name slot, no password and I just hit [Enter]

and get logged in to Desktop instantly !

Earlier I rummaged in BIOS | ACPI Configuration and set "PCI Devices Power

On" to [Enabled]

...so that WinTV's scheduler can wake up the PC from a Hibernated state -

which seems to work, (but have to hit a key to get Hibernate to complete).

Yet to fully rummage in WinTV's Configuration settings - wondering if Win-TV

driver is causing Hibernate to not complete and power down PC !

....any ideas gratefully accepted :-)

regards, Richard