I have been noticing that CodeRush / Refactor Pro! are playing up every so often my shiny (well, dusty) new Vista PC.
The symptoms are minor, but annoying when you have your fingers trained
Basically Smart Cut / Intelligent Paste stop working.
Turns out, the solution is on the Expert options: Startup \ Re-register CodeRush commands with Visual Studio on next startup. Easy!

...Then you can have all your pretty refactoring graphics back!
