Thanks for the prompt reply. A few answers. I did install it under Program Files (x86) , will have to find out what UAC is and I am sure I did not have it turned off, have tried with anti virus and all security programs both on and off and got the same results, will have to see if I used Installer as administrator, and did not run Load Manager once before flying. I will be working on checking these ideas out this morning and will let you know the results. Many thanks for the suggestions.Lazyeight