I try CENT OS 7 installed POLICY MANAGER FOR LINUX version 12, but Virus definitions on the server display has been no Does CENT OS 6 with the original installation methods are different? Also I in the newly established CENT OS 6 installed POLICY MANAGER FOR LINUX version 12 did not happen this situation, but sUPPORTED PLATFORMS AND LANGUAGES does not support this version of the CENT OS, I ask whether it is because the CENT OS 6 have unexpected error problem?