I've got my PC connected to the Samsung SyncMaster 940MW monitor (via VGA cable) and it flickers. Same thing was happening when I had my PS3 connected to it via a component cable, but ceased after connecting it via HDMI->DVI cable. Such thing never occurs when I connect my laptop to this monitor with the very same VGA cable. I tried various resolutions and color modes, but it hasn't solved the problem. The graphic card is some crappy Intel 82845G chip, but it worked fine on Philips CRT monitor.