No showroom or in-game graphics

[Mo75S]

Good afternoon,
updated the game from 1.09 to the latest 1.16- and now whenever i go to view the cars in the showroom all i get is a black screen (no connection to pc).

There are background sounds/music and i can do things like open doors just I can't see anything.
When loading the selected car and track there's no loading-screen just the same black screen (no connection to pc) until the game loads and then sometimes I have graphics and can play the game but most of the time i still can't see anything so I have to exit back to the main screen and everything is fine again.

The issue is to do with the showroom and on track graphics where let's say, the game is struggling to switch between main menu graphics and in-game graphics.

(at no point does the game crash as i can hear the ai drive off into the distance)

I'm running an old rig on a tv-screen but everything was working fine before i updated the game.
(i have 1.9 installed in a different fold and the older version of the game seems to work)

Any thoughts or suggestions would be much appreciated.

Many thanks