I did find the old post about this error and tried everything..but it still gives me this error message. Windows 7 64 bit. Clean Windows install due to a motherboard and SSD upgrade. Have tried to re-install the game several times...every time I have deleted the entire r-factor folder and the trymedia folder as well. Have tried to install the complete (full version) and the lite version. When I launch the game I get an error message...UNKNOWN INTERNAL ERROR. My clock is at the correct setting and have also done an internet clock sync. DO NOT HAVE ANY antivirus software running. And yes I have tried running as administrator. All other games I have installed run fine... Please help. Update: Tried uninstalling everything r-factor related.....including the r-factor folder and trymedia folders...re-installed game...as soon as I click on the shortcut...UNKNOWN INTERNAL ERROR. I tried installing as administrator as well......this is frustrating me no end!!