@lalboy - I recommend using a CSM mod, as follows:
1) Install GP4, and play the game to make sure it works OK.
2) Install
GPxPatch3) Install
ZaZ Tools4) Download a CSM mod such as the
2012 Mod by GP4 Central5)
Install the mod in CSM6) Play
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Intel NUC 8i3, 8GB RAM, MS Sidewinder Wheel