In earlier (2008 and older) versions of AutoCAD, when you started the MTEXT command you would get a toolbar popping up that had all the formatting options that applied. In 2009 and newer – no toolbar. Instead you would get a ribbon panel for MTEXT editing.
This was something that was bugging me all along, but because of a customer problem, I had just dealt without it.
How to fix it? Set the MTEXTTOOLBAR setvar to 1 (just type it in)
From the AutoCAD help:
The H-Factor 
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