I have msi nx6600gt pci-e 128mb and msi k8n neo4 platinum. I've installed the latest drivers for both of them. However, I don't have the "DOT" feature like it should be. It should show up on display properties. So i don't what to do if i want to overclock my video card. I'm running win xp service pack 2. Could anyone suggest me how to solve this issue?