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Problem with Apple IIc null modem

Hi,

I am having a problem getting a null modem to work between my Apple IIc 
and my laptop PC.  I hope someone can help me solve this problem.

I want to use the null modem to run ADT, but I keep getting I/O errors in 
ADT.  I created my null modem cable according to the following pinout:

DIN-5, male       DB9, female
(Apple)

4 (2) TXD     --> 2 RXD
5 (4) RXD     <-- 3 TXD
2 (3) GND     --- 5 GND
1 (1) DTR     --> 6 DSR --, pins 6 and 1 connected by jumper
                  1 DCD --'
3 (5) DSR/DCD <-- 4 DTR

The pin numbering that I used for the DIN-5 connector, as viewed by 
looking at the pins on the front, are:

Apple numbering      Standard numbering

1     5                  1     3  
 2   4                    4   5
   3                        2

The pin numbering that I used for the DB9 end of the null modem cable, as 
viewed by looking  at the front of the female connector, are:

--------------
\ 5 4 3 2 1 /
 \ 9 8 7 6 /
   -------

This is what happens when I install the null modem cable, and I boot up 
Windows 3.11 (on the PC) and ProDOS (on the Apple IIc).

If I type IN#2 on the apple, I can enter text in a terminal emulator and 
the text will display perfectly on the Apple IIc monitor.

However, if I type PR#2 (print to the serial port) when I type something 
on the Apple, I get gibberish on the teminal emulator (ion the PC sode).
The gibberish looks like this:

����ç??������ؠ����Ò?�Ý?Ý?Ý?Ý?Ý?Ý?Ý?Ý?Ý?Ý?Ý?�
�Ý?Ý?Ý?Ý?Ý?Ý?Ý?Ý?Ý?Ý?Ý?�ì»?�������ؠ����Ò?��ì»?�������ؠ����Ò?��ì»?��
�����ؠ����Ò?��ì»?�������ؠ����Ò?��ì»?�������ؠ����Ò?���ê??�
�����ؠ����Ò?������������������������������������������������������������
��������������������������������������ô??¿ï¿½ï¿½ï¿½ï¿½ï¿½Ø ï¿½ï¿½ï¿½ï¿½Ò?�Ý?Ý?Ý?�����ê??�
�����ؠ����Ò?�����������������è??�����ؠ����Ò?���������������������������
����������������������������æ??������������������������������������������
������ê??������ؠ����Ò?��

The serial port settings on both sides are the same, and I'm running at 
300 baud.

Does anybody know what I am doing wrong, ar have a suggestion that will 
help me.  It appears that I can send text from the PC to the Apple IIc, 
but CANNOT send text from the Apple IIc to the PC.

Any help would be greatly appreciated.

thanks,
Jay