Double checked. It isn't just my Wii SMB's. The computer upstairs, running Windows XP SP3, is missing folders from shares, too. I can connect to the folders, they just don't show up on a browse of the network.
Most notably, my "Photos" folder is missing from my "Pictures" share, until I downgrade (upgrade?) to Avast! 5.1.889. Then I can see the "Photos" folder without a problem.
Avast! 6 is doing something serious to LANManager/NetBios over TCP/IP shares. It doesn't work on Wii, it only marginally works in XP SP3. Given that I depend on my network for a number of things, I can't use this version of Avast! and I certainly am going to stop recommending it.
Is there anything we can do to help troubleshoot this bug?
(P.S.: I tried the Microsoft Security Essentials, but would still rather have Avast! 5.1.889. Didn't like MSE one bit)