Hi Rusty!
I started this topic and announced you MM didn't synchronise well with Zen Vision:M on Vista (in beta build 1105).
I really like MM and it looks nice. MM3 is going to be a really good player. However, my problem is not yet fixed, I'm afraid...
When I go through te options for synchronisation, the browse-button for storage Location is disabled. As result of it (I guess), MM still doesn't sync the the desired folder, being /Music. It keeps synchronising to root (/).
I seem to remember that MM3 once synchronised right (it could be in Build 1098 like Espen73 confirmed, I'm not shure anymore

).
Another problem is that sometimes, after completing Synchronisation, the progress bar is still active. It doesn't dissappear. Only on closing MM (with the message there are still running tasks, confirm termination...)
Here is some info about my windows Machine en Zen Vision:M; if you desire more info, just ask. I check this forum sometimes.
Computer (Acer Aspire 5920):
Windows Vista Home Premium
Core 2 Duo T7300 - 2GB RAM
Zen Vision:M (30GB)
Firmware version: 1.62.02_0.00.23
I hope this information is sufficient to help you make MM the best Media Player ever :p
Greetz,
MiST