B Frame won't work!

[Frenchy_Alex]

Hi, I hope nobody posted about this before; but I have a problem: I'm using Vdub (last one) and Xvid (last build) to encode; and there's no way I can activate B-frames, quarterpixels... It stays gray as if the option didn't exist.
Does anybody know what to do?
THX

[NoLogo]

What build do you use ?
Only dev builds have BF implemented (please correct me if I'm wrong).

[Sirber]

Use the lastest from Koepi, the dev alpha one. Works like a charm.

[Frenchy_Alex]

Shame on me! I was not using the right build: I thaught that the version a the top of the download page was the latest one, but it's not!
Thx all for the help.