I wonder if a clean reinstall of Rapture would fix the error. The installer
http://www.cakewalk.com/S...reader.aspx/2007013294 would be the one I would try.
The new Rapture installer, it will require the new credentials that were added to your account when you bought X2.
If you added any programs or expansion packs other than the Cakewalk free ones, you may want to backup the current Rapture directories, prior to running the new installer. That would mean copying "C:\Program Files\Cakewalk\Rapture" (and the Multisample directory if you moved it from the default location), the hidden directory "C:\ProgramData\Cakewalk\Rapture" and possibly "C:\Program Files (x86)\Cakewalk\Rapture", if it was used during the 32bit install. This will help get back the extra programs/samples into the fresh Rapture install.