I am having a similar problem as a former poster (apparently the thread is closed).
I believe the Blank fields in Control Centre may be caused by NOT selecting the install option that asks if ZA detects a local network, it will configure it for you ... select:YES/NO. I chose NO on the problematic PC that displays a 'blank' Control Centre, but chose YES on another network PC with almost identical software installed, and Control Centre displays fine. Installs were only a few minutes apart on these 2 machines.
I have tried uninstall/reinstall 3X with no change, using Windows XP ADD/REMOVE. I welcome any help!