Vista sleeps for about one minute and then wakes
there are no devices that can wake the computer. all have been disabled, and
verified by the powercfg command. no devices are listed that are able to wake
the computer.
This problem occurs whether or not the laptop is plugged in.

here is an error from an event entry labeled power troubleshooter

by the way the microsoft health model events online system is worthless. I
always get the "we're sorry, no additional information" found page

Log Name: System
Source: Microsoft-Windows-Power-Troubleshooter
Date: 12/24/2007 6:29:21 PM
Event ID: 1
Task Category: None
Level: Information
Keywords:
User: LOCAL SERVICE
Computer: TOSHIBA
Description:
The system has resumed from sleep.

Sleep Time: 12/25/2007 1:28:37 AM
Wake Time: 12/25/2007 1:29:17 AM

Wake Source: Unknown
Event Xml:
Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"
System
Provider Name="Microsoft-Windows-Power-Troubleshooter"
Guid="{cdc05e28-c449-49c6-b9d2-88cf761644df}" /
EventID1/EventID
Version0/Version
Level4/Level
Task0/Task
Opcode0/Opcode
Keywords0x8000000000000000/Keywords
TimeCreated SystemTime="2007-12-25T01:29:21.663Z" /
EventRecordID70440/EventRecordID
Correlation ActivityID="{CE8FEE59-7E30-4F32-ACCE-B89D817183B4}" /
Execution ProcessID="2040" ThreadID="5568" /
ChannelSystem/Channel
ComputerTOSHIBA/Computer
Security UserID="S-1-5-19" /
/System
EventData
Data Name="SleepTime"2007-12-25T01:28:37.418Z/Data
Data Name="WakeTime"2007-12-25T01:29:17.841Z/Data
Data Name="SleepDuration"8479/Data
Data Name="WakeDuration"1509/Data
Data Name="DriverInitDuration"833/Data
Data Name="BiosInitDuration"977/Data
Data Name="HiberWriteDuration"0/Data
Data Name="HiberReadDuration"0/Data
Data Name="HiberPagesWritten"0/Data
Data Name="Attributes"16642/Data
Data Name="TargetState"4/Data
Data Name="EffectiveState"4/Data
Data Name="WakeSourceType"0/Data
Data Name="WakeSourceTextLength"0/Data
Data Name="WakeSourceText"
/Data
/EventData
/Event