I'm having a problem, that I cannot solve..

I downloaded the UB levels from internet, and I checked that I had CDCheckFile line removed.. Then I started the game..

It loads the ORIGINAL Tomb Raider's Main Menu, even playing it's menu music.. Well, I begin the game from passport, but whenever I start the adventure, Glidos crashes to the desktop without any error report..

If my PC's Specifications are any help, here they are!
CPU: AMD Duron 1,6GHz
RAM: 512mb
OS: Windows XP Home Edition
Video Card: nVidia GeForce 5600 FX Ultra
DirectX: 9.0c

I know my PC is crap, but who cares? It's enough for me!

Greetings from Finland! 😅