Hi Alex
I have tried this and will report back but this is sub-optimal at best as it requires disabling CEC for the whole TV. Therefore other devices (e.g. Xbox, Apple TV), that work correctly with CEC will no longer work at all, breaking my setup in a number of ways as it will prevent those other devices from communicating with the TV.
I believe JCS2 also refers to the fact that this breaks the 'Input' changer feature, which stops the Virgin remote being able to replace the original TV remote.
So I think theoretically it may work, and I will report back with the practical outcome, but it seems to be more by the way of disabling the feature entirely for all devices connected to the TV (a nuclear option), rather than actually fixing the bug in question.
Hopefully we can get a solution to allow CEC to work correctly as it is a very valuable feature and works perfectly on other devices, and in many ways, with the Virgin 360 box.
Thanks,