Dell Inspiron 1521 constantly reverts to default power settings
 

I have a Dell Inspiron 1521 running WinXP SP3 (and the latest BIOS from Dell)
that is connected to an external monitor, keyboard, and mouse (the screen
remains closed and the display output is set to external monitor only via FN
keys). For whatever reason, over the past several weeks, the power settings
on the machine keep getting reset and reverting back to the standard
portable/laptop configuration, including causing the machine to go into
standby every night (which is not what I want because I have Norton Ghost set
up to backup the machine every night to a network drive). This never used to
happen before, but I can't figure out what has changed. I had previously set
up a customized power scheme (named Customized #1) that told the machine to
never go into standby, and when I set it to this, it seems to hold for a few
days, and then even though it still displays as being on Customized #1 power
scheme, the actual settings revert (such as 20 mins for standby instead of
Never).

Anyone have any suggestions on what I can try to prevent this, as it is
becoming extremely annoying! Thanks!
--
- marc
http://www.marcbressman.com
http://www.falconcc.com