I recently upgraded from the P05 firmware to P05-beta in order to correct the issues with MP4 playback (green blocks etc) that happen in P05. The MP4 issue was fixed, but now I can't copy files over to the HD on the Box Office. The HD shows up fine in network discovery, and I can browse the files on the HD, but whenever I try to copy something over the network, Windows spends a long time trying to discover the files, and then eventually reports back with an error saying that it couldn't access the remote HD. And yet, sometimes half the file is copied (apparently during discovery), sometimes the whole thing, but never fully copied (enough so that the file actually plays). I can browse my PC from the BO and playback files over the network that way without a problem, btw.

I tried re-flashing the Box Office with P04, just in case it was an issue with the firmware, but no dice - same problem. Does anyone have advice for/solution to my problem?