Once again, guys, thanks for all the help.
You're not using the drivers that came with XP are you? If so, they're terrible (I used to have a Live card myself and had the same problem after my XP install). There is a XP driver update from Creative that fixed it for me.
Yeah, I'm well aware of the crappy XP drivers. 😀 It makes The Sims sound like they're all talking from somewhere beyond the U-bend. So, I've already updated the sound drivers....
RainGod, have you tried running TR setup and selecting no audio, and putting Glidos in Windowed mode? That experiment may tell me something about the white screen.
Sorry I didn't mention it before, but one of the first things I tried was selecting no sound and it made no difference. However, your earlier suggestion of deleting the Vesa setting from the glidos.ini did the trick. It works just as well as the earlier version of Glidos now. But also crashes to black at seemingly random times. eg. when I exit out of Lara's home and try to start a new game; swimming to the bottom of the pool in Lara's home; trying to exit to the menu from a new game.
These crashes don't happen every time, but fairly often.
And the sound problem is still there. Most noticeable during the movies and when Lara speaks. I'll try Wildman's suggestion of switching to Sound Blaster 1.
Also... just to be trouble 😀 , I tried Caramageddon using Glidos and it didn't go too well either. Loaded up fine and showed me the potential of very cool 3d effects, but ran very slooow. Even the menu ran at seemingly half-speed.
I have the platinum version of Carmageddon which already has 3dfx installed, and has the choice of a windows and dos version (I used the dos version obviously).