hmmm. is that nav version 7 or version 8? i think in version 8 they dropped 98 support, but it's a good thing that the box might have a virus. if you're competent, you could unlpug the drive in the 98 box, plug in into your xp box, and scan it using the xp box.
on a side note, i had heaps of problems with 98-xp pro networking, got rid of 98 and xp both and running 2000pro i have no problems
something to think about.
sG.