James, I have two thoughts;

1    I have uncovered some flaws in Microchip and other vendors silicon
where changing a register on the fly introduces some form of error.
(Especially ones that one would not think of changing often).  Not that you
will see this here, but certainly keep your eyes open for a flaw.
2    Recieving is a challenge, but sending is relatively easy.  Why not set
the reciever to work right, and simply bit bang the send?  If the baud rate
is not too high, you can in line it.  If it is real slow, you could even
have the timer int space it out.

Chris Eddy

James wrote:

> Has anyone ever tried to transmit/receive at different
> baudrates...basically changing baudrates between pieces of data?