TeraByte Unlimited

Are you running the same version and kernel of Deepin (15.8 x64, 4.15.0-29) that you were using before?

No. I'm running 15.11...

I checked that version and the commands for Debian 10.0 (Buster) in the KB article worked.
https://www.terabyteunlimited.com/kb/article.php?id=566

OK. Will check. Thanks.

OK. Just getting around to trying this. The first commands work fine but nothing seems to happen after commend #2 and when I run sudo ./setup I get this error message;

./setup: line 198: ./util/tbosdt: Permission denied
Required package libncursesw5 (32-bit) not installed

Also, I notice now that you have two IFL packages, an x86 and x64, which one should I be using for thiss? Maybe that's the issue.

Either package is fine. They both have the same files for the installation. Needs to be the full purchased version (not "nonet" version).

I assume you're installing on a normal Linux partition (ext4?). If it's actually a permission issue then there might be something else going on besides the libs not being installed.

I assume you also ran these two first:
dpkg --add-architecture i386
apt-get update

#2 downloads the libpng12 package and you should see details on that when run. Do you see an error message?

OK. Will try to give it another go this week.