Cannot install ATI 2014 on system where Symantec Drive Encryption 10.3.1 is installed.

Have been investigating this for a while now. The USB ports freeze and W7 hangs on shutdown if either ATI 2013 or 2014 are installed on the same system as Symantec Drive Encryption 10.3.1 (formerly PGP). Their previous build 10.2.1 is fine and obviously this is something Symantec also need to address but it is a pain not being able to have ATI on either laptop of desktop which are both affected. I am having to resort to the boot disk to do stuff but I also use ATI to view drives over 2TB in size so this is a big problem unless there is a workaround!