I noticed a strange thing on networks with both XP and non-XP into.
I tried with several Win 9x different versions networking with XP pro.

In first: I configure normally, I connect... It doesn't work (not any comunication). ok

In second: I use the XP network utility (on the cd) to configure all my network... It doesn't work again. ok

In third: I activate netbios on the Win 9x computers... It works!!

I don't know why XP/Win 9x networks need to have netbios activate but it is (for me) the only way to make it work.

Have you info or coments on this?