Thank you for the update sir, I'm trying it now. I noticed an error regarding TigerVNC so coped the noted just incase it helps:
SHA1SUM: 3a3ce5f559703b578c4d30898f199fb5684dac10
Decrypting File: jriver28-1.2-amd64.fw
Please wait, verifying file contents...
Uploaded file is a Snakeoil OS Module
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
Hit:1
http://au.archive.ubuntu.com/ubuntu xenial InRelease
Hit:2
http://au.archive.ubuntu.com/ubuntu xenial-updates InRelease
Hit:3
http://au.archive.ubuntu.com/ubuntu xenial-backports InRelease
Get:4
http://security.ubuntu.com/ubuntu xenial-security InRelease [109 kB]
Hit:5
https://esm.ubuntu.com/infra/ubuntu xenial-infra-security InRelease
Hit:6
https://esm.ubuntu.com/infra/ubuntu xenial-infra-updates InRelease
Fetched 109 kB in 2s (40.9 kB/s)
Reading package lists...
Building dependency tree...
Reading state information...
All packages are up to date.
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
Reading package lists...
Building dependency tree...
Reading state information...
Package 'tightvncserver' is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package tigervnc-standalone-server
Install has finished, please click the close button below to exit.
Houston, I think we have lift off - I can see it in the list now and it opened automatically. Aslo can see the DAC again, so presume this is going to work. I'll have a play and report back.
Thanks TJ you're a superstar mate!