There are other possibilities (I am not so sure about the “long file name” suggestion, as it would effect all macs equally - and I don't believe there was a long file name problem with the Xenith Mac viewer – I worked at Xitron for 14 years).
Anyway, it could be that your Mac doesn't have a machine name – this does weird things to networking. It could be that the memory settings on the viewer are set too low (do a get info on the app and give it more memory), it could be that you don't have the latest software on the Mac, there have been updates.
Too bad you can't get a support call, I am pretty sure they could fix you up.
kernk
Kernk
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