I've a twin monitor system - 1 dsub 1024x768 primary monitor, and a 1920x1200 secondary connected by HDMI. The secondary monitor repeatedly (randomly) blanks for 2 seconds. I'm used to this happening on my vista laptop just after coming out of standby, but on Windows7 it keeps happening sometimes 5 time in a minute, sometimes minutes apart. It seems to be much worse if a window is maximised on the HDMI screen. It's on an ASUS M2A-VM HDMI motherboard, with a dual core Athlon 3ghz chip, and I've got the microsoft ATI Radeon X1200 Series (Microsoft Corporation WDDM) driver. I'm running Windows7 64bit build 7100. I've tried installing the ATI 9.3 graphics drivers, but they fail to install. Anyone with any other suggestions?