When install Ati 9.0 home. click the Help / About the serial number didnot appear. After completely uninstall Ati 9.0 then Install ATI 10.0 home 4940, key in serial number . go to Help / About screen , the serial number appear. Previously Install Ati 8.0 , Ati 9.0 . Ati 10 4871 serail no. didn,t appear. How come Ati 10.0 serial no appear? Anybody came across or ati 10 4940 is Design this way. Below is the Image attached.