So I opened a drawing this morning and noticed two things.  A diameter symbol has dissapeared from one dimension and has been replaced with the code text .  I've tried to place a new dimension and I've dimensioned other holes in the view with no success.  The diameter symbol is replaced with the coding....what's up with that?

The second issue with the drawing is a geometric tolerance for a surface no longer shows the surface symbol.  When I look at properties, it's there, but it no longer shows on the drawing.  I have a previous revision of this drawing saved as a PDF and these problems don't exist.  Might there be a problem with SP3 I haven't read about?  Anyone?