Ruler out of alignment


when I open a rtf document, but do not click on the text, the ruler is slightly out of alignment (see Ruler1.tiff). As soon as I click on the text, it aligns right (see Ruler2.tiff).

Is this a bug? A feature? Can I change it?

Thanks in advance!
Ruler2.tiff (1.85 KB)
Ruler1.tiff (3.99 KB)

This is a known glitch, see viewtopic.php?f=4&t=8079

Ah, thanks!