Do Sony Vaio Z noise cancelling headphones work on any Vaio Z

I've been given a VPC-Z13Z9E to replace my original VPC-Z11 CTO that stopped working.



While the Z13Z9E doesn't come with noise cancelling headphones, I had assumed that the ones that came with my CTO would work with the new PC, but they don't seem to: i.e. the noise cancelling feature doesn't work. I would have thought that the problem is with a driver setting, but I can see that the noise cancelling program is installed (though I notice the driver doesn't add it to the startup programs) and it does nothing when I try to run it, so maybe there is a difference in hardware.



Has anyone managed to get a Vaio Z (VPC) which didn't come with the headphones to work with the Vaio Z noise cancelling headphones? If so, was there trick to do it?



Many Thanks!



Ashers