[Radiant] Asset Manager Demo - acts_as_attachment

[Todd McGrath]

Hi,

I'm trying out the Asset Manager Demo extension with Mental branch and 
ran into a error.  While I'm digging in, thought to see if anyone has 
any ideas

Background: I've got Rmagick, ImageMagick, acts_as_attachment installed 
and can see the "Assets" extension installed when I click on the 
Extensions link in admin.

When I click the new "Images" tab (courtesy with Asset Manager Demo), 
I'm presented with:

ArgumentError in Admin/assetController#index

A copy of Technoweenie::ActsAsAttachment::ActMethods has been removed 
from the module tree but is still active!

RAILS_ROOT: ./script/../config/..
Application Trace | Framework Trace | Full Trace

#{RAILS_ROOT}/vendor/rails/activesupport/lib/active_support/dependencies.rb:234:in 
`load_missing_constant'
#{RAILS_ROOT}/vendor/rails/activesupport/lib/active_support/dependencies.rb:447:in 
`const_missing'
#{RAILS_ROOT}/vendor/plugins/acts_as_attachment/lib/technoweenie/acts_as_attachment.rb:51:in 
`acts_as_attachment'
#{RAILS_ROOT}/vendor/extensions/assets/app/models/asset.rb:7

Any ideas!?

Todd M