I'm having an issue with black screening occurring when gaming or doing things graphic-y. All other times the computer is fine (word processing etc.).
My LG L192WS monitor goes into 'power saving mode', sound sometimes continues as normal or sometimes emits a high pitched tone through the speakers (alterable with the volume control).
I've tried just turning the monitor off and back on, this does not fix it (goes straight into power saving mode). Since the monitor is hibernating I can't alt+tab out, I am required to do a reset.
I have tried cleaning my heatsink on the CPU as I thought it may be over heating, this has not solved anything...
This is occurring increasingly often now, used to be every now and then, now happens pretty much any time I do anything graphically taxing, it can take time before it happens, not always straight away.
Any ideas? Thank you in advance :D