I have installed the Color Decompose (For B&W Conversions) script found here http://registry.gimp.org/node/27745 of Pat David, but i get the following error:
Execution error for 'Color Decompose':
Error: eval: unbound variable: gimp-item-set-name
Plug-In 'Color Decompose' left image undo in inconsistent state, closing open undo groups.
I use Gimp 2.6.8 under Ubuntu 10.04.
Who can help me out?