Thanks for the quick feedback.

Well, the freezing haunts me since I have this board. When I first posted, I wasn't using any standalone opengl drivers, but now I'm using WickedGL and it seems that the crashes have stopped (for a while). I mean, sometimes it still crashes, but at most 1 or 2 times per day. However, I haven't tested any other games to see if the crashes still occur. I'll install some FPS'ers then I'll be posting back here again about it.
Yes, Half-Life is in OpenGL mode. 1024x768, 32 color depth.

About the TV feature, I've managed to get it to work with this driver I'm using.
I don't know if I can post it here since is another issue, but here it goes:
Is there any conversor for the TV to make it work with PAL-M instead of NTSC (which is native from my board, but my country uses PAL-M system) ?
The only way I've managed to get color at my tv was opening virtualdub to convert to PAL-M then going back to 3dfx TV turner. I'd like a solution for that too.

Thanks again.

The game:
Half-Life (Steam based) - Natural Selection mod

The specs:
Athlon XP 1700+
512 RAM
Motherboard ASUS A7A266-E
80gb HD WD
Monitor Philips 107B 17"
Voodoo 3 3500TV (NTSC)
Win XP Pro (SP2) up to date

The problem:
Well, I've tried every single driver for my card on WinXP. I'm actually using Voodoo 3 (HoE 1.00 +JS) << this one.
I can play with no real problems most of the time, but, randomly, my game crashes. I get no video response, screen totally freezes. No chance of coming back, no alt+tab, no ctrl+alt+del. Just reset and that's it.
Actually, that isn't only with Half-Life. I've tried Serious Sam: The First Encounter too. Couldn't play either. Kept crashing over and over.

My conclusions:
* My card may be overheating (doubt it, checked it myself and it doesn't go over temperatures that it doesn't support);
* There is a miracle driver or dll and I didn't find out yet;
* My processor kills everything together, by some reason I don't understand;
* Voodoo 3 3500TV won't hold 1024x768 with 16bit color depth and 60fps at Half-Life;
* I'm crazy and seeing things. It's just my brain freezing from time to time.

Well, I REALLY hope there is someone out there that can help me for good. I'm getting really tired of rebooting my machine about 5 to 10 times a day. PLEASE, this will save a LOT of my wasted time in front of my computer.

Thank you.

(A very, very, very sad gamer)

p.s.: feel free to mail me any possible answer. thnx again.