I'm using MaxIm 6.09, licence upgrade valid to 2016/08. I downloaded version 5.24 to try it with ACP and check if the problem related with the guiding star reported in the thread "Coordinate difference between MaxIm and Pinpoint" could be solved with this version, I can't work with ACP and MaxIm 6 for a long time now. When installing 5.24 I can't install my licence, OK button is greyed. Checked Licence ref and date are OK.