Clicking on either "help | check for updates" or "extras | extension manager | check for updates" yields nothing except a "server error message" of just ".". Yes, just a naked period...
The system DOES have perfect connectivity to the internet, so this is neither an OS or an internet uplink issue...
System is Linux Mint 18.3, OO is version 4.1.7. Yes, I know, 4.1.8 is available, but since installation is not as easy as other Mint/Ubuntu packages I need a non-busy day for migration.
Thanks
hman2