I hope you have created 2 separate threads for the same issue. Let's take your issue here: http://devgurus.amd.com/message/1287947#1287947
NOTE: In case you are upgrading the APP SDK (i.e. APP SDK folder exists in "My Documents"), you need to manually remove it before installing APP SDK. That is a known issue and mentioned in the installation notes.
Message was edited by: Himanshu Gautam