Prob w/ Haali Media Splitter+AVI+subs on Winamp

Playback doesn’t even start with VSFilter 2.37 registered, everythng works fine with VobSub 2.23, the problem occurs only with the AVI container, any clues?

Versions used:
Haali Media Splitter 1.6.49.0 (18-01-2006)
VobSub 2.23
VSFilter 2.37
Winamp 5.12 / Winamp 5.2 Beta (build 365)

Thank you.

Dc