check for updated video drivers
why do you manually turn it off instead of letting windows do it automatically
why do you manually turn it off instead of letting windows do it automatically
Don't think I'm that stupid mate and as I told you before this does not happen always.It sounds like you've got your power saving options set to turn the monitor off after a set time. You should be able to wake it up and get the signal back by moving the mouse or hitting a key on the keyboard.
Ok thanks for your help, appreciate it..there was a set of drivers that caused the pc not come out of sleep mode
I already tried that and it didn't work straight awaynext time it happens,turn the power off at the back of the computer and then back on and see if it starts straight away