Hey, that's the one I have. I didn't notice any problems, but I don't think I used it in the last few days. Maybe it self-corrected.
"Later models, including the flash-memory-based Zune 4, Zune 8 and Zune 16, as well as the hard-drive-based Zune 80 and Zune 120, were spared."
And, of course, it was human stupidity at work:
"Later in the day, Microsoft finally figured it out. While writing some of the driver software, the world's biggest software company had forgotten to compensate for leap years. The solution? Wait 24 hours until Jan. 1."
Derr!