Warning in VirtualDub JobControl

[me@work]

Lately, I converted to DiVX 5.0.5. Since then I converted several MPEG2 videos to AVI using VirtualDub's JobControl. The conversions went ok, as far as I remember, but now every single conversions gets a status Done(warnings). Unfortunately, I don't find an indication to which warnings occurred. I checked my _divx.log and analyse.log files, but to no avail.
So, could a kind soul please point me to where I can check the warnings, so that (maybe) I can do something to prevent them happening?
Thanks in advance.

BTW:
When I try do convert audio to MPEG Layer-III, I only get a very limited selection of bitrates, up to 56kBit, IIRC. I guess my installation is lacking some kind of codec, but does anyone know which one ?

[Belgabor]

I assume you are using VDub 1.5.2

Have a look at the changelog on virtualdub.org, I think you should understand then.

Considering mp3 you either need to buy the full Fraunhofer codec or get the lame ACM codec (might be illegal in your country)