Visual Studio 2005 IDE showing duplicate menus

The IDE has started generating duplicate menu items, have 4 File menus grouped in 2 pairs etc. This the same for all the menu options. Selecting a menu also shows duplicate.

The duplicated commands are due to a bad merging or a conflict with command customizations. Running devenv.exe /setup and deleting your command customization file (under Documents and Settings\[you]\Application Data\Microsoft\VisualStudio\8.0\1033\CmdUID.prf ) should clear up the problem.