Ripping dvd with dvddecrypter and autogk out of sync

Hi, I have used dvddecrypter and autogk for a long time to rip my dvds to avi for use on my media centre, I have never had any sync issues before but have recently done a fresh install of win7 on an ssd, after reinstalling dvddecrypter and autogk my rips are out of sync by a few seconds.
I rip the main movie to a single vob, this is in sync perfectly, it is the avi which comes out of autogk which is out of sync, i have checked all the settings i can find but cant find a culprit.
Any thoughts would be most welcome,

Thanks,

If the file is out of sync the whole way through you could use AVIMux to resync.
AVI-Mux GUI

as to why, someone with more experience might beable to help.

try use dvdfab dvddecrypter is quite old..or try different audio codec in the converter