So I tried a full removal again and restarted the computer after each step, but it still gives me the same error. I tried again to do a full removal, deleted directories, removed any entry in the registry that had the name streetdeck or mappoint. reinstalled everything and still same error. I am stuck using just the original verson from the cd. Its fine but i like the hybrid view that was added in later versions. Does anyone have any more ideas to fix this "parameter is incorrect" error?