This is a rather drastic option,but if you know what you're doing,you can try this:
Close Incd,uninstall it,uninstall Nero,remove the Nero/Ahead folder @ your program files....
Then use the "search" function,with advanced options checked,to search for every Nero,Incd or Ahead file on your system and remove them......use every combination of lowercase or capitals for searching the filenames
then start regedit and do the same:search for Nero,nero,Ahead,ahead,InCd and every name of the program you can think of,and remove the strings....
Reboot,install your bundled version WITHOUT InCd,reboot again and update with the latest Nero version (still without having InCd installed!)and try again if it works properly now....