viewtopic.php?f=47&t=103798

I am trying to look at event log.
the last one was:
Systém přechází do režimu spánku.

Důvod spánku: Aplikační rozhraní API

the system is going into sleep mode. Reason: Application interface API


detail:
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
<EventID>42</EventID>
<Version>2</Version>
<Level>4</Level>
<Task>64</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000004</Keywords>
<TimeCreated SystemTime="2012-05-16T11:01:44.077442900Z" />
<EventRecordID>6605</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="56" />
<Channel>System</Channel>
<Computer>thinkpad64</Computer>
<Security />
</System>
- <EventData>
<Data Name="TargetState">5</Data>
<Data Name="EffectiveState">5</Data>
<Data Name="Reason">4</Data>
<Data Name="Flags">0</Data>
</EventData>
</Event>

any ideas? i now tried to disable another bunch of things...usb in BIOS I/O.