I know the problem xbee to receive / send Characters do not match the Quick!

I use 2 xbee (XBP24-AWI-001 revE) communicate with a PC connected to the first and the second with MCS-51 (P89V51RD2) with LCD display with a 9600 baud rate.
The problem is that if the text window, type X-CTU or Hyper Terminal to display the LCD (by xbee connection with MCS51 and display LCD) character received does not match the letters sent.

For example, if the text type ‘K’.'ll Get a letter ‘J’ and so on.

Contact us at Mr.KOOK \ yongyoot_hp8@hotmail.com.

Thank you.