I have a license for spatial analyst and desktop advanced. Arcmap works fine but when I try to open a spatial analyst tool I get a prompt saying that there is no license currently available or enabled. When I open desktop administrator it shows 1 license and says "yes" under available. It expires in 2041. So why am I getting this error? Do I need to do something in license manager to reauthorize or something? Thanks much in advance for any help.