I've never come across this particular problem before.

First, make sure to have applied the patch and display driver update. Also use my CA.INI fix.

Run in Software mode first (if you are trying to use 3DFX mode and a glide wrapper.

You could also try disabling one core on your processor.

Two things. What is the CA.ini fix and where to get it?
I tried Software mode with no luck, not any of the other modes either. Also have no idea of how to disable one of my cores.

The CA.INI fix. Just replace the file in the game install folder...
http://digitality.emenace.com/flyboy/lb2/setup/xp-fix.zip

Use WinLauncherXP to disable processor cores easily...
http://www.majorgeeks.com/WinLauncherXP_d870.html

Read my article for more... Jane's Longbow 2 and Modern Computers
http://www.simhq.com/_air13/air_437a.html

I too am having the stutter problem 10 seconds into flight in 3dfx mode.I have done everything listed to setup the LB2.I did install it on XP,copy it over to my W7 x64 system patched up and run all the utilities.Im using DGvoodoo.I agree its a sound looping problem or something.How do we fix this because frame rate makes the sim impossible to fly at like 2-4fps.Its running fine in d3d but of course the graphics in d3d suck bad compared to 3dfx.

My system,

AMD 9850 Quad
6GB ram
W 7 x64
Nvidia GTS 250 1GB ram
DVDRW

akwar - your guess is as good as mine nowadays. It's good to hear that it runs OK in D3D though.

akwar - I almost forgot about Phoenix's fixes. Go to down to Phoenix's LB2 Final Solutions towards the bottom of the page linked below. Read the description there and see if you think it would help.

http://digitality.comyr.com/flyboy/lb2/setup/setup.html

I personally haven't got round to testing it myself yet, so can't vouch for it. I'd love to know how you get on if you do use it.

I am happy to report that fix worked perfectly and the sim now runs in 3dfx with only one issue so far.I had one screen freeze on starting a mission.Rebooting sim and flew 2 missions in the campaign with no issues.Ahhh a classic is brought back to life,thanks.

I'm glad it worked for you on first trial, akwar. It would be more interesting to know if it would do, say, 6 or 8 missions in a row though.

Thanks for testing it!

I was able to get through 8 missions without issues.

Congratulations! That's really good to know. Thanks for the further testing.