Just to be sure, when you say "AutoCad 12" you are referring to AutoCAD2012, not AutoCAD r12, correct?
Assuming the former, workspace settings such as toolbars, aren't stored in the "Profile", they're stored in the CUI (cuix) Basically, anything that's a user "preference" such as Background colors, Osnap Settings, Crosshair size etc is stored in the profile. The profile also stores the paths to the support files/folders such as the location of your AutoCAD directory, template file location, and default template, font and linetype file location, AND the location of the CUI(s)
The CUI (.cuix file) is where workspace settings are stored. This includes the arrangement of the Ribbon and toolbars, toolbar size and position, menus (both drop down and right-click) and custom commands, and their icons.
Keeping that in mind, can you describe what type of problems you've had trying to re-use you settings from one computer on a different computer?