Corel Draw, Photo-Paint and Font Manager won't open

When I double click Corel Draw, it shows the green splash picture, shows "Starting User Interface..." and then it just disappears. No crash, no nothing. It just disappears and doesn't open the program.

Same with Corel Photo-Paint and Corel Font Manager.

Curiously, when I try to open a CDR file with CorelDraw, then it opens without problem. In a similar way, when I try to open, let's say, a PNG file with Photo-Painter, the program opens. But Photo-Painter does not load the file. It opens the workspace empty and I have to open the file "again" (or drag and drop it). Corel Draw DOES open the file when summoned from Open with...

I also have Corel Graphics suite X7 installed and it is working with no problem

This is as far as I get when opening the program directly:

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