Using CLOS under CLISP

[GORDONB <G.D.BAXTER@dundee.ac.uk>]

I am trying to get the ACT-R production system running under CLISP, 
on a 386 with 3Meg of memory, under DOS.  (Please note that I am NOT a 
LISP expert.)

I am having problems, however, in getting the CLOS extensions to work:
when I load in CLOS I get a number of "continuable error" messages, 
before I get the "Stack Overflow. RESET" message.

Does anybody know how I can get around this problem? 

Thanks,

Gordon Baxter
Cognitive Science Student
University of Dundee
Scotland