Rails - Dec 2005 - Anyone see similarly inconsistent code generation errors?

I''m curious to see if anyone else has been experiencing errors such  
as the following at unpredictable times (usually after changing  
something on a page and then re-loading it in development mode):

ArgumentError (negative argument):
     /vendor/rails/actionpack/lib/action_controller/ 
code_generation.rb:13:in `*''

NoMethodError (undefined method `shift'' for -517611318:Fixnum):
     /vendor/rails/actionpack/lib/action_controller/ 
code_generation.rb:215:in `continue''

NoMethodError (undefined method `concat'' for -517611318:Fixnum):
     /vendor/rails/actionpack/lib/action_controller/ 
code_generation.rb:202:in `add_segment''

TypeError (wrong instance allocation):
     /vendor/rails/actionpack/lib/action_controller/ 
code_generation.rb:65:in `new''

TypeError (-517611318 is not a class/module):
     /vendor/rails/actionpack/lib/action_controller/ 
code_generation.rb:66:in `dup''

These errors happen every once in a while (maybe 1/20 times on  
average), and go away if I re-load the page once or twice.  I''m  
running Edge Rails with Ruby 1.8.3 on Mac OS X 10.4.3.  They errors  
been happening for two or three weeks so it''s not a bleeding edge  
addition to Rails, whatever the cause.

Ideas anyone?

Duane Johnson
(canadaduane)