DIG problem

Hello,

I am using the command "DIG" to get DNS records from specific name servers
at my web host. (through a web interface)

The problem is that DIG returns error code 10 almost always, on one of my
servers, while it works on another (error code 0).
I contacted the web hosting company several times, but it seems that they
cannot figure out whats going on. (obviously because of lack of knowlege!)

The /etc/resolv.conf is fine (I am not using it anyway).

Is there a particular reason for DIG to not function properly?

A detailed answer would be highly appreciated.

Thanks!

Domainer