Good evening Stumpy and thanks for your message. Tormach gave me three references in the UK before I bought and I am in regular communication with one of these.
I no longer post on the forum but deemed this information worthy of breaking silence to those interested. With hindsight I should have put a link to the post on my website to make life easier. If you follow this link you will get my full write up which is on the opening page, second entry down.
The fix worked for me straightaway and has been good ever since. The other good thing is that once you are connected you get live updates automatically downloaded to the machine. I think this problem dropped off the end of the shift register in doing the upgrade checking and there will be a 2.0.1 issued shortly.
It is important to watch Dropbox loading if you enable this.
There is quite a lot of other Tormach/Fusion 360 and 3D printing on the site which might take your fancy. This includes an illuminator light for the Tormach spindle using an ebay Angel Light.
Hope that helps.
Kind regards
Alan