I have same problems with 1.13, install on ISS local host for testing.. i'm sure that is fress install and my data is connect good..
i do process setup and all check list is good in blue, but it alway repeat to screen force me to enter data detail ( in fact the data is connected ).. and still can not see the GO button ???
i have look at the code then line 308 look like this
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echo "You need to address the problems indicated above then run `setup.php` again.";
exit();
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then comment out the >> exit funtions
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// exit();
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now the process can continue with GO button..
i will put the testing right now.. if see any issue will be report..
kind regards