Question: installing Maple 17

I am currently running sucessfully Maple 15 on Macbookpro mid 2009 4G, CPU 2,53 Ghz Intel core duo, NVIDIA GeForce 9400M 256 Mo, OSX 10.8.4

I bought the upgrade to Maple 17, when launching the install package : I have a grey window with a "next" button with slow flashing : impossible to click on it ... so impossible to install the new version

thanks for your help !!

by the way Java installed

best regards


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