Problems establishing connection & problems with paper size

Hi Im working with an AS/400 system that provides multiple printing
queues (PRTMVC1, PRTMVC2, PRTMVC3, PRTMVC4...)

*First problem: I cannot connect to the PRTMVC1.

Im using the same configuration I use for other queues but I can't
establish connection. Is there a way to enable logging on lp5250d to
find out what's going on with the handshaking?

*Second problem: Paper Size.

It seems that paper size of documents printed on PRTMVC1 are bigger than
the rest, so moving documents from this queue to another one results in
this error:

        Le type d'unit{ du fichier n'est pas accept{ par l'unit{.

I don't speak french but I think it's a paper size problem.

Searching in your archives I found this post, clearly the same problem
that Im having now:

        http://article.gmane.org/gmane.comp.emulators.tn5250/556

I don't understand how to change parameters on my .tn5250rc to solve
this situation, it will be very nice if you can help me on that.

thanks on advance for all your help and your time,

critter.