On the off chance that this is serious, you could help us diagnose this problem by answering the following:
Do you get any errors, or anything?
What happens when you run LFS?
Whats in deb.log?
What version of Windows are you running on?
Or if you're running linux, what version of wine/cedega? (technically its unsupported, and it runs badly, but its worth checking)
Whats the spec of the rest of your pc?
Incidentally LFS is Dx8 (or was last time I heard - and I dont expect it to have changed).