Exactly the same as this problem from way back, only I've had this from 1.8.0 to present (2.1.0 master).
Boo: no symbols, cue MS Paint:
Anyone know why this might be or have the same problem?
Happens on Win7 & Ubuntu (& Xubuntu) 13.04.
This issue raised on hug.qis.org (and can be subscribed to) here.