Have installed new acad 2005 lt. In the past 2 months i have experience the program losing its licence and then coing up with an error 1.1.98. It then asks me to remove the program and reinstall it again. This has happened twice in the last 2 months. 2 questions: 1) why is this happening 2) how can i stop it from happening again, since it is using up a lot of time reinstalling the program. Thank you in advance.