My note book was preinstalled with windows 7 Professional 32 bit. i created two users. one "Admin" as Administrator privileges and the other with "username" as standard user. In admin account, i have installed Auto CAD LT 2005 and the program works fine. when i log into the standard user account, autocad is not working. i turned off the UAC and checked. still it is not working. i made the compatibility of the program to run as administrator, but still it is not working. any help will be appreciated. Thanks in advance.