I installed VMS 2.3 eval downloaded from Cisco and using the existing license from VMS 2.x. After the installation, and importation of IDS sensor 5.1 into the MC, I could not get the IDS MC to work properly. It give me this error when I go to the signatures setting (under Configuration -> Settings -> Signatures -> IPS 5.X)
Object loading failed. SignatureGroups(boolean): Unable to load and parse signature groups document.
I uninstalled the IPS MC and reinstall this module. And it doesn't fix the problem. Everything is fresh installation from Window 2000 Pro, VMS, and IPS 5.1