[imp] MIME weirdness

[Kevin Konowalec]

Horde: 3.1.2
Imp: H3 (4.1.2)
Suddenly out of nowhere I'm getting a rash of users complaining about  
mime-encoding problems when using Imp.  They say there's all kinds of  
'=A0' and '=20' and the like in messages they open in Imp.  When they  
open the same message in another client there's no problem.  I  
haven't made any changes to the system in a LONG time.  Has anyone  
else seen something like this happen and if so what has to be done to  
fix it?

As an addendum I opened up a message that I saw this happening in and  
it says that there are alternative parts for the message.  When I  
click it (text/plain) it opens up perfectly fine.  Something else I  
noticed is that there is a section that is set as quoted (marked by  
'>' at the beginning of the lines) which does not show up in the  
message as displayed by imp.  Something's definitely gone weird.