-- Posted by vulcan at 2:11 am on Nov. 3, 2008 I have recently upgraded to an ATI Radeon HD 4870 x2 and during use the screen goes on and off randomly but not all the time. It can't be a heat problem as it's 47 degrees when idle. What could be the problem? -- Posted by Viddian at 2:12 am on Nov. 3, 2008 Have you checked the monitor is plugged in properly at the back? Also, have you checked any forums/sites seeing if people have had the same problem? It might be your actual computer causing it to happen? -- Posted by vulcan at 2:16 am on Nov. 3, 2008 Quote: from Viddian at 10:12 am on Nov. 3, 2008 Have you checked the monitor is plugged in properly at the back? Also, have you checked any forums/sites seeing if people have had the same problem? It might be your actual computer causing it to happen? All cables are connected securely. I tried searching but found nothing. It was working perfectly before the upgrade. My computer is compatible with the card, I made sure of that. -- Posted by Viddian at 2:16 am on Nov. 3, 2008 Right, let me have a look for you, see what I can find :) -- Posted by Viddian at 2:21 am on Nov. 3, 2008 http://www.tomshardware.co.uk/forum/255534-15-4870-screen-blank-randomly -- Posted by vulcan at 2:27 am on Nov. 3, 2008 Hmm my driver is out of date...I'm a noob.... -- Posted by Viddian at 2:28 am on Nov. 3, 2008 Haha, well at least you figured out the problem.