Steps to reproduce:
1. run FreeRide
2. hit <F1> key
3. select a category under keyword section
4. hold the down arrow to scroll through help and an exception occurs

Results:
TypeError: can't convert nil into Array

c:/ruby/lib/ruby/1.8/rdoc/ri/ri_descriptions.rb:99:in `concat'
c:/ruby/lib/ruby/1.8/rdoc/ri/ri_descriptions.rb:99:in `merge_in'
c:/ruby/lib/ruby/1.8/rdoc/ri/ri_reader.rb:56:in `get_class'
c:/ruby/lib/ruby/1.8/rdoc/ri/ri_reader.rb:52:in `get_class'
c:/ruby/freeride/plugins/rubyide_tools_fox_ri/fxri/lib/RiManager.rb:107:in `report_class_stuff'
c:/ruby/freeride/plugins/rubyide_tools_fox_ri/fxri/lib/RiManager.rb:101:in `show'
c:/ruby/freeride/./plugins/rubyide_tools_fox_ri/fxri/fxri.rb:288:in `on_show'
c:/ruby/freeride/./plugins/rubyide_tools_fox_ri/fxri/fxri.rb:296:in `show_info'
c:/ruby/freeride/./plugins/rubyide_tools_fox_ri/fxri/fxri.rb:153:in `build'
c:/ruby/lib/ruby/gems/1.8/gems/fxruby-1.2.6-mswin32/lib/fox12/responder2.rb:57:in `onHandleMsg'
c:/ruby/freeride/./plugins/rubyide_fox_gui/appframe.rb:51:in `start'
c:/ruby/freeride/freebase/lib/freebase/databus.rb:950:in `call'
c:/ruby/freeride/freebase/lib/freebase/databus.rb:560:in `call'
c:/ruby/freeride/freebase/lib/freebase/core.rb:69:in `initialize'
c:/ruby/freeride/freebase/lib/freebase/core.rb:68:in `initialize'
c:/ruby/freeride/freebase/lib/freebase/core.rb:35:in `startup'
freeride.rb:77:in `startup'
freeride.rb:116

Date: 2006-08-16 09:07
Sender: Laurent Julliard

Can you make sure you have the new FR installer 0.9.6-1 (see
the Files download section on RubyForge) installed on your machine
and let us know if you still have this problem?

Date: 2006-08-05 06:39
Sender: Laurent Julliard

Can't reproduce this bug on My Linux box. What keyword have you
selected? Does this happen with all keywords? How large is you
help pane in number of text lines?