"Fatal Error: Cannot convert textures. Your video card is not supported."

Turns out, the problem isn't just the heat—it’s why the heat happens.

For advanced users: You can manually tell GTA III how much video memory to use.

GTA III pushed texture memory to its absolute limit on 32MB and 64MB cards. The game streamed the entire city of Liberty City from disc, but texture conversion happened in real-time. Specific triggers for genuine “cannot convert textures” errors included: