Same problem as many others on this forum -- I installed the MaximDl 6.13 yesterday and loaded the license as per instructions. The software worked fine last night, but when I tried to load it today, I get the "license has expired" error message. The expiry date is 6/1. Reloading the license gives me the error "cannot load a second demo license" or something similar. The date and time on my computer are correct -- 5/3/2017, so I'm not sure what happened or how to fix it. Please help!