executable does not start

[KatharinaDD]

I reiterate my issue here , since I am not sure on where to report the problem (I also put it into some bug-tracker site, but that is not linked to the webpage of IQmol and I am not sure whether it is maintained). Sorry for cross-posting - the website clearly asks to report issues, it just doesn't say where....
I downloaded the windows installer for IQmol from http://www.iqmol.org/downloads.html. Installation seems to have gone OK (i.e. the installer does not complain). However, when I start the IQmol executable, all that happens is that a logo shows up. Then the program stops. It is very possible that I am doing something stupid, but I would not know what.
Platform: Windows X
IQmol version: both: 2.14 and 2.13.0 as installed with the windows installer