I have a Sapphire 7770 OC 1GB Vapor-x Edition Graphics Card, It's not very old I bought it last year.
My monitor is a ASUS 24 inch using resolution 1920x1080
Windows 7 home premium edition
Basically i will just be using my computer for gaming and it will all of a sudden go to no input signal on the monitor. It for a while never did that when i first got it, now it's doing it. The computer was bought 2011 Christmas and graphics card was bought around 6 months ago or a little more i think.
I use a Powercool 750W PSU, AMD Phenom II X6, Asrock 970 extreme 3 and 4 gb of ram.
I haven't as yet tried anything like new drivers or new HDMI cable or new parts, I thought i might aswell ask here first, thanks