OT and Apple router software conflict, please help me!

[Roberto Savoia <rsavoia@tinet.ch>]

Hi all,	
Thi is my situation: I'm using a Macintosh VX (System 7.5.3) over a
token ring connection. I need Open Trasport because as a server I have a
windows NT running TCP/IP and the mac has to be a client.
Attached to the macintosh I have a Personal laser writer. To print to
this laser I needed to install apple router software (v. 3.0). 

My problems is, that every time I try to start the router my mac crashes
saying "Sytem error, unimplemented trap" with the bomb.
The router works good with the traditional network software (without
OT), but in this case I can not use the TCP/IP.

Is there anyone who can tell me how to use OT and apple router software
without this conflict. I also tried with the version 1.1.1 of OT but
nothing changed.

Thanks in advance.

bob