There is one quite likely explanation with a straightforward fix.
You are using the WIBU Codemeter dongles with CVB 2011. When this version was current, the Codemeter dongles had serial numbers starting 2xxxxxx. This number can be found at the base of the USB plug. This indicates the security chip version. New dongles (at the time of writing) have serial number 3xxxxxx, indicating a newer security chip.
The Codemeter runtime (including the Codemeter Control Centre) had no knowledge of the future hardware version, so it is simply not detected. However installing a newer version of the Codemeter runtime will give you backward compatibility for the 2xxxxxx dongles as well as the 3xxxxxx dongles.
Codemeter runtime is not listed as a separate program to uninstall in Window, but you can install a newer version over the top. See here for the latest version:
http://codemeter.com/us/service/downloads.html
This has implications only for the detection of the hardware dongles, so once they are detected, any CVB licences that are on the dongle will be visible to CVB.
I hope that helps (I also hope that is the issue…)
Jon