almabrds: It was not working, since I upgraded to Win 10 (an error saying there was missing .dll files, kept popping up every time I clicked the shortcut).
After reinstalling, it's working perfectly.
Actually, this is a fairly important thing to note.
The Windows 10 upgrade process (if you did an in-place install, which you must initially do when getting the free upgrade from Microsoft; later you can make clean install media, but that first upgrade has to be done in place unless you purchase a new copy of Windows) sometimes has odd effects on existing software, which are not the case when the same software is reinstalled after Win10 has been set up.
In fact, sometimes the upgrade process will even declare a program to be altogether incompatible with Windows 10 and automatically uninstall it, even though it turns out the program is compatible after all (and works fine if you install it again). An example I remember from the reddit computer programs was the Speccy system analysis program.
So in general if you get a problem like this it's a good idea to reinstall the program first and see if it persists; also, the real moral is that in-place Windows upgrades suck, and shame on Microsoft for forcing us to do it that way for the free Win10 offer (after all, the discount Windows 8 launch upgrade deal didn't do that!) - you're probably best off doing a clean reinstall of Windows 7 or 8.1 and then upgrading to Windows 10 before installing anything significant, or else once your Win10 upgrade has taken, download the install media ISO from Microsoft and do a clean reinstall :)