The Dave Houston page to read, but study his whole site for that matter.
http://davehouston.org/RFTipsTricks.htm

If you are using DEFINE to set up the HSER then do not add these lines. That is what the DEFINES are for.
Code:
 RCSTA = $90 ' Enable serial port & continuous receive
 TXSTA = $20 ' Enable transmit, BRGH = 0
 SPBRG = 51  ' 2400 Baud @ 8MHz, 0.17%
The 93 thing has me confused at the moment.
You might try SERIN2/SEROUT2 for giggles while you are playing with this serial stuff...