PRS-300 Font confusion

[garbanzo]

i don't understand how the reader decides what font to use.

i loaded one RTF that was in 11pt Calibri, and it showed up as serif.
i loaded another in 15pt Calibri, it showed up as sans serif.
i edited the second to be 15pt Times New Roman. still showed up as sans serif.

what is going on?

[garbanzo]

the headings were different.

here is the one that showed up as serif:

{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl {\f0\froman\fprq2\fcharset0 Cambria;}{\f1\fswiss\fprq2\fcharset0 Calibri;}{\f2\froman\fprq2\fcharset0 Times New Roman;}{\f3\fnil\fcharset0 Calibri;}}

and the one that showed up as sans serif:

{\rtf1\ansi\ansicpg1252\deff0\deflang1033\deflangf e1033{\fonttbl{\f0\fnil\fcharset0 Calibri;}}

turns out the first one had chapter headings in Cambria while the body was in Calibri. so the first font used in the file was Cambria.

i changed the font of the first to Cambria, and the reader displayed it using the serif font. yay!