Hi,
You can reference the following posts with similar issue and try the suggestions mentioned :
https://supportforums.cisco.com/discussion/12924276/7937-stuck-configuring-cm-list
https://supportforums.cisco.com/discussion/11536186/7937g-stuck-configuring-cm-list
https://supportforums.cisco.com/discussion/10460011/7937-stuck-configuring-cm-list
HTH
Manish