go to Start menu type Power Options then click on it when the window opens one of the 3 will be checked
Balanced , Highe Performance, Power saver (Mine is High Performance) ok to the right of any of those click on CHANGE PLAN SETTINGS
in here click the down Arrow for TURN OFF DISPLAY change it to NEVER also you can set PUT THE COMPUTER TO SLEEP right under TURN OFF DISPLAY
click SAVE CHANGES
also note: you may have to change settings under CHANGE ADVANCED POWER SETTINGS
in this list look at these options all have sub categories
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Multimedia settings
when sharing video click down arrow
set it to PREVENT IDLING TO SLEEP
When Playing Video
set it to OPTIMIZE QUALITY
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Display
Turn off display after
Set it to NEVER < note even if you did this on the first page it may still be set to the time so check it.
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this one you may not have but if you do
PCI Express
Link State Power Management
Set it to OFF
Click APPLY then ok
then click SAVE CHANGES
hope this helps
NOTE this is for Win 7 64bit Vista may be a bit different and 7 32bit ..
