Yup, you were spot on.
After a few hours of cursing I found you can undo the bricking.
!!! !!! !!! For anyone else do not use driver versions 2.11 or 2.12. !!! !!! !!!
CDM V2.10.00 is the latest driver you can use and is still available on the FTDI site.
Anyone thats bricked like me, remove the drivers you have an install 2.10. Then download MProg 3.5 also on FTDI site, scan and find your device. Click Tools --> Read & Parse. If you product ID now shows 0000 then its bricked, change this back to 6001. Save and program. You should be back.