Please try downloading the Setup file from the Mac 'side' and make sure you launching the correct Setup file under CrossOver.
Well I tried that and also un-installed KVS and deleted the Crossover bottle then did a new install - still got the old version. Not sure what to do next - I would really like the new version to fix the issue with "method not supported'.
Thanks.
it's also quite a bother to re-try this over and over as each time I need to re-enter registry key and all my FF numbers/passwords.