Templars Secret Technical Issues

[Chel]

Hello all.

I am trying to get this level going on my Windows 7 machine, which I have used to play all the custom levels here without issue. However, this particular level set, for some reason has no audio whatsoever, and altering the resolution settings causes the game to crash when I attempt to open the passport to save the game.
Did any of you also have this problem? I've combed through the settings and can find no cause there. I've played plenty of TR3 levels with no problems so I'm completely stumped! The game looks to be a ton of fun and I hate to miss out!