I can think of three other possible situation that causes this:

1) Have you left the "Put Computer to Sleep" option on?

2) Make sure your screen saver is not set to "blank screen" (or any
screensaver for that matter)

3) Check for any third-party power management utility - often included in
laptops from Dell, HP, Acer etc and make sure they are not set to turn the
computer to sleep/hibernate etc




"Roger Stenson" wrote in message
...
Hi all
We use a Vista system to display the running results in our bridge club on
a web page. The system has two screens,, one showing the control page for
the bridge results system, the other showing the running results for the
event as a web page.

In the power settings if have selected "Never" against turn off the
display. In spite of that the both screens are blacked out for long
periods in spite of the fact that the results software is polling a
wireless server every minute and updating the control screen and
simultaneously refreshing the results screen

I would be grateful if some one could help me by advising me what other
set up features I have to examine to ensure that the two screens are
never blacked out

Roger Stenson